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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2013	Apr. 18, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	Huron Consulting Group Inc.
Entity Central Index Key	0001289848
Document Type	10-Q
Document Period End Date	Mar. 31, 2013
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		23,277,877

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 5,749	$ 25,162
Receivables from clients, net	101,549	97,510
Unbilled services, net	59,123	47,232
Income tax receivable	1,003	192
Deferred income taxes, net	9,631	14,751
Prepaid expenses and other current assets	13,914	15,525
Total current assets	190,969	200,372
Property and equipment, net	33,269	33,805
Other non-current assets	15,584	15,322
Intangible assets, net	17,337	18,879
Goodwill	518,916	519,522
Total assets	776,075	787,900
Current liabilities:
Accounts payable	6,978	8,461
Accrued expenses	15,786	17,692
Accrued payroll and related benefits	32,869	61,672
Bank borrowings, current portion	25,000
Accrued consideration for business acquisitions, current portion	5,586	5,640
Income tax payable	165	7,872
Deferred revenues	15,345	15,388
Total current liabilities	101,729	116,725
Non-current liabilities:
Deferred compensation and other liabilities	7,140	6,973
Bank borrowings, net of current portion	177,500	192,500
Deferred lease incentives	6,874	6,936
Deferred income taxes	15,784	14,560
Accrued consideration for business acquisitions, net of current portion	4,956	4,885
Total non-current liabilities	212,254	225,854
Commitments and Contingencies
Stockholders' equity
Common stock; $0.01 par value; 500,000,000 shares authorized; 25,184,665 and 24,793,327 shares issued at March 31, 2013 and December 31, 2012, respectively	243	240
Treasury stock, at cost, 1,893,745 and 1,880,809 shares at March 31, 2013 and December 31, 2012, respectively	(84,137)	(83,715)
Additional paid-in capital	427,607	420,825
Retained earnings	120,667	109,330
Accumulated other comprehensive loss	(2,288)	(1,359)
Total stockholders' equity	462,092	445,321
Total liabilities and stockholders' equity	$ 776,075	$ 787,900

Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2013	Dec. 31, 2012
Consolidated Balance Sheets [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	25,184,665	24,793,327
Treasury stock, shares	1,893,745	1,880,809

Consolidated Statements of Earnings and Other Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues and reimbursable expenses:
Revenues	$ 164,036	$ 138,637
Reimbursable expenses	15,336	13,796
Total revenues and reimbursable expenses	179,372	152,433
Direct costs and reimbursable expenses (exclusive of depreciation and amortization shown in operating expenses):
Direct costs	106,128	96,781
Amortization of intangible assets and software development costs	658	1,142
Reimbursable expenses	15,351	13,818
Total direct costs and reimbursable expenses	122,137	111,741
Operating expenses:
Selling, general and administrative	32,263	30,067
Restructuring charges		830
Restatement related expenses		1,505
Litigation settlement gain	(1,150)
Depreciation and amortization	4,779	4,653
Total operating expenses	35,892	37,055
Operating income	21,343	3,637
Other income (expense), net:
Interest expense, net of interest income	(1,863)	(1,866)
Other income, net	13	333
Total other expense, net	(1,850)	(1,533)
Income from continuing operations before income tax expense	19,493	2,104
Income tax expense	8,124	1,517
Net income from continuing operations	11,369	587
(Loss) income from discontinued operations, net of tax	(32)	269
Net income	$ 11,337	$ 856
Net earnings per basic share:
Net income from continuing operations	$ 0.51	$ 0.03
Income from discontinued operations, net of tax		0.01
Net income	0.51	0.04
Net earnings per diluted share:
Net income from continuing operations	0.51	0.03
Income from discontinued operations, net of tax	(0.01)	0.01
Net income	$ 0.50	$ 0.04
Weighted average shares used in calculating earnings per share:
Basic	22,139	21,775
Diluted	22,487	22,164
Comprehensive income:
Net income	$ 11,337	$ 856
Foreign currency translation (loss) gain, net of tax	(997)	239
Unrealized gain on cash flow hedging instruments, net of tax	68	49
Other comprehensive (loss) income	(929)	288
Comprehensive income	$ 10,408	$ 1,144

Consolidated Statements of Stockholders' Equity (Unaudited) - 3 months ended Mar. 31, 2013 - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2012	$ 445,321	$ 240	$ (83,715)	$ 420,825	$ 109,330	$ (1,359)
Beginning Balance, shares at Dec. 31, 2012		23,904,125	(1,889,465)
Comprehensive income	10,408				11,337	(929)
Issuance of common stock in connection with:
Restricted stock awards, net of cancellations		$ 3	$ 143	(146)
Restricted stock awards, net of cancellations, shares		310,001	3,549
Exercise of stock options	27			27
Exercise of stock options, shares		20,211
Share-based compensation	6,323			6,323
Shares redeemed for employee tax withholdings	(565)		$ (565)
Shares redeemed for employee tax withholdings, shares			(16,283)
Income tax benefit on share-based compensation	578			578
Ending Balance at Mar. 31, 2013	$ 462,092	$ 243	$ (84,137)	$ 427,607	$ 120,667	$ (2,288)
Ending Balance, shares at Mar. 31, 2013		24,234,337	(1,902,199)

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 11,337	$ 856
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,437	6,621
Share-based compensation	4,635	4,842
Allowances for doubtful accounts and unbilled services	6,953	2,246
Deferred income taxes	6,083	3,344
Changes in operating assets and liabilities, net of businesses acquired:
(Increase) decrease in receivables from clients	(4,742)	2,133
(Increase) decrease in unbilled services	(18,423)	4,456
(Increase) decrease in current income tax receivable / payable, net	(8,513)	2,379
(Increase) decrease in other assets	2,459	1,853
Increase (decrease) in accounts payable and accrued liabilities	(3,000)	3,492
Increase (decrease) in accrued payroll and related benefits	(27,018)	(36,795)
Increase (decrease) in deferred revenues	(34)	(7,978)
Net cash used in operating activities	(24,826)	(12,551)
Cash flows from investing activities:
Purchases of property and equipment, net	(3,576)	(5,267)
Net investment in life insurance policies	(507)	(361)
Purchases of businesses, net of cash acquired		(31,298)
Capitalization of internally developed software	(692)
Net cash used in investing activities	(4,775)	(36,926)
Cash flows from financing activities:
Proceeds from exercise of stock options	27	29
Shares redeemed for employee tax withholdings	(565)	(3,710)
Tax benefit from share-based compensation	803	1,116
Proceeds from borrowings under credit facility	22,000	93,000
Repayments on credit facility	(12,000)	(42,500)
Payments of capital lease obligations		(5)
Net cash provided by financing activities	10,265	47,930
Effect of exchange rate changes on cash	(77)	430
Net decrease in cash and cash equivalents	(19,413)	(1,117)
Cash and cash equivalents at beginning of the period	25,162	5,080
Cash and cash equivalents at end of the period	$ 5,749	$ 3,963

Description of Business

3 Months Ended

Mar. 31, 2013

Description of Business and Basis of Presentation [Abstract]

Description of Business

1. Description of Business

We are a leading provider of operational and financial consulting services. We help clients in diverse industries improve performance, reduce costs, leverage technology, process and review large amounts of complex data, address regulatory changes, recover from distress and stimulate growth. Our professionals employ their expertise in administration, management, finance and operations to provide our clients with specialized analyses and customized advice and solutions that are tailored to address each client’s particular challenges and opportunities to deliver sustainable and measurable results. We provide consulting services to a wide variety of both financially sound and distressed organizations, including healthcare organizations, leading academic institutions, Fortune 500 companies, governmental entities and law firms.

Basis of Presentation

3 Months Ended

Mar. 31, 2013

Description of Business and Basis of Presentation [Abstract]

Basis of Presentation

2. Basis of Presentation

The accompanying unaudited Consolidated Financial Statements reflect the financial position, results of operations and cash flows as of and for the three months ended March 31, 2013 and 2012. These financial statements have been prepared in accordance with the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) for Quarterly Reports on Form 10-Q. Accordingly, these financial statements do not include all of the information and note disclosures required by accounting principles generally accepted in the United States of America (“GAAP”) for annual financial statements. In the opinion of management, these financial statements reflect all adjustments of a normal, recurring nature necessary for the fair presentation of our financial position, results of operations and cash flows for the interim periods presented in conformity with GAAP. These financial statements should be read in conjunction with the Consolidated Financial Statements and notes thereto for the year ended December 31, 2012 included in our Annual Report on Form 10-K.

Certain amounts reported in the previous year have been reclassified to conform to the 2013 presentation. Our results for any interim period are not necessarily indicative of results for a full year or any other interim period.

New Accounting Pronouncements

3 Months Ended

Mar. 31, 2013

New Accounting Pronouncements [Abstract]

New Accounting Pronouncements

3. New Accounting Pronouncements

In February 2013, the FASB issued ASU No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, which amends current accounting guidance on comprehensive income. The guidance requires an entity to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income if the amount is reclassified to net income in its entirety in the same reporting period. For other amounts not required to be reclassified in their entirety to net income in the same reporting period, a cross reference to other disclosures that provide additional detail about the reclassification amounts is required. The Company adopted this guidance effective January 1, 2013. The guidance required a change in disclosure only and did not have any effect on the Company’s consolidated financial statements.

In March 2013, the FASB issued ASU No. 2013-05, Parent’s Accounting for the Cumulative Translation Adjustment Upon Derecognition of Certain Subsidiaries or Groups of Assets Within a Foreign Entity or of an Investment in a Foreign Entity, which amends current accounting guidance on foreign currency matters. This guidance requires that the entire amount of a cumulative translation adjustment related to an entity’s investment in a foreign entity should be released when there has been a: (i) sale of a subsidiary or group of net assets within a foreign entity and the sale represents the substantially complete liquidation of the investment in the foreign entity, (ii) loss of a controlling financial interest in an investment in a foreign entity, and (iii) step acquisition for a foreign entity. This guidance will be effective for the Company beginning in the first quarter of 2014. We do not expect the adoption to have a material impact on our consolidated financial statements.

Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended
Discontinued Operations (Details) - USD ($) $ in Thousands	Mar. 31, 2013	Mar. 31, 2012
Summarized operating results of discontinued operations
Revenues	$ 33	$ 390
(Loss) income from discontinued operations before income tax expense	(53)	424
Net (loss) income from discontinued operations	$ (32)	$ 269

Discontinued Operations (Details Textual) $ in Millions	12 Months Ended
Discontinued Operations (Details Textual) $ in Millions	Dec. 31, 2011 USD ($)
Accounting Advisory [Member]
Discontinued Operations (Textual) [Abstract]
Loss on sale of Accounting Advisory	$ 1.9

Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Changes in the carrying amount of goodwill
Goodwill		$ 662,505
Accumulated impairment		(142,983)
Goodwill, net as of December 31, 2012	$ 519,522
Foreign currency translation	(606)
Goodwill, net as of March 31, 2013	518,916
Health and Education Consulting [Member]
Changes in the carrying amount of goodwill
Goodwill		450,481
Legal Consulting [Member]
Changes in the carrying amount of goodwill
Goodwill		52,947
Financial Consulting [Member]
Changes in the carrying amount of goodwill
Goodwill		159,077
Huron Healthcare [Member]
Changes in the carrying amount of goodwill
Goodwill	355,880	355,880
Goodwill, net as of December 31, 2012	355,880
Goodwill, net as of March 31, 2013	355,880
Huron Healthcare [Member] \| Health and Education Consulting [Member]
Changes in the carrying amount of goodwill
Goodwill		355,880
Huron Legal [Member]
Changes in the carrying amount of goodwill
Goodwill		52,947
Goodwill, net as of December 31, 2012	52,947
Foreign currency translation	(606)
Goodwill, net as of March 31, 2013	52,341
Huron Legal [Member] \| Legal Consulting [Member]
Changes in the carrying amount of goodwill
Goodwill		52,947
Huron Education and Life Sciences [Member]
Changes in the carrying amount of goodwill
Goodwill	94,601	94,601
Goodwill, net as of December 31, 2012	94,601
Goodwill, net as of March 31, 2013	94,601
Huron Education and Life Sciences [Member] \| Health and Education Consulting [Member]
Changes in the carrying amount of goodwill
Goodwill		94,601
Huron Financial [Member]
Changes in the carrying amount of goodwill
Goodwill		159,077
Accumulated impairment		(142,983)
Goodwill, net as of December 31, 2012	16,094
Goodwill, net as of March 31, 2013	$ 16,094
Huron Financial [Member] \| Financial Consulting [Member]
Changes in the carrying amount of goodwill
Goodwill		$ 159,077

Goodwill and Intangible Assets (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Intangible assets
Gross Carrying Amount	$ 33,959	$ 34,063
Accumulated Amortization	16,622	15,184
Customer relationships [Member]
Intangible assets
Gross Carrying Amount	24,634	24,738
Accumulated Amortization	11,219	10,268
Non-competition agreements [Member]
Intangible assets
Gross Carrying Amount	4,684	4,684
Accumulated Amortization	3,295	3,067
Trade names [Member]
Intangible assets
Gross Carrying Amount	150	150
Accumulated Amortization	$ 20	8
Technology and software [Member]
Intangible assets
Useful Life in Years	5 years
Gross Carrying Amount	$ 4,041	4,041
Accumulated Amortization	$ 1,953	1,751
Document reviewer database [Member]
Intangible assets
Useful Life in Years	3 years
Gross Carrying Amount	$ 450	450
Accumulated Amortization	$ 135	$ 90
Minimum [Member] \| Customer relationships [Member]
Intangible assets
Useful Life in Years	3 years
Minimum [Member] \| Non-competition agreements [Member]
Intangible assets
Useful Life in Years	1 year
Minimum [Member] \| Trade names [Member]
Intangible assets
Useful Life in Years	1 year
Maximum [Member] \| Customer relationships [Member]
Intangible assets
Useful Life in Years	13 years
Maximum [Member] \| Non-competition agreements [Member]
Intangible assets
Useful Life in Years	6 years
Maximum [Member] \| Trade names [Member]
Intangible assets
Useful Life in Years	8 years

Goodwill and Intangible Assets (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2013 USD ($) Segment	Mar. 31, 2012 USD ($)	Dec. 31, 2012 USD ($)
Goodwill and Intangible Assets (Additional Textual) [Abstract]
Number of operating segments \| Segment	5
Reassigned amount of goodwill			$ 662,505
Goodwill and intangible assets (Textual) [Abstract]
Number of reportable segments \| Segment	5
Future cash flow forecast period	6 years
Long-term assumed annual revenue growth rate	3.50%
Weighted average cost of capital (WACC) discount rate	13.00%
Intangible assets amortization expense	$ 1,500	$ 1,600
Estimated annual intangible assets amortization expense 2013	5,800
Estimated annual intangible assets amortization expense 2014	4,500
Estimated annual intangible assets amortization expense 2015	3,100
Estimated annual intangible assets amortization expense 2016	1,800
Estimated annual intangible assets amortization expense 2017	1,200
Estimated annual intangible assets amortization expense 2018	700
Huron Healthcare [Member]
Goodwill and Intangible Assets (Additional Textual) [Abstract]
Reassigned amount of goodwill	355,880		355,880
Huron Education and Life Sciences [Member]
Goodwill and Intangible Assets (Additional Textual) [Abstract]
Reassigned amount of goodwill	$ 94,601		94,601
Health and Education Consulting [Member]
Goodwill and Intangible Assets (Additional Textual) [Abstract]
Number of operating segments \| Segment	2
Reassigned amount of goodwill			450,481
Health and Education Consulting [Member] \| Huron Healthcare [Member]
Goodwill and Intangible Assets (Additional Textual) [Abstract]
Reassigned amount of goodwill			355,880
Health and Education Consulting [Member] \| Huron Education and Life Sciences [Member]
Goodwill and Intangible Assets (Additional Textual) [Abstract]
Reassigned amount of goodwill			$ 94,601

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Reconciliation of basic and diluted earnings per share
Net income from continuing operations	$ 11,369	$ 587
(Loss) income from discontinued operations, net of tax	(32)	269
Net income	$ 11,337	$ 856
Weighted average common shares outstanding - basic	22,139	21,775
Weighted average common stock equivalents	348	389
Weighted average common shares outstanding - diluted	22,487	22,164
Net earnings per basic share:
Net income from continuing operations	$ 0.51	$ 0.03
Income from discontinued operations, net of tax		0.01
Net income	0.51	0.04
Net earnings per diluted share:
Net income from continuing operations	0.51	0.03
(Loss) income from discontinued operations, net of tax	(0.01)	0.01
Net income	$ 0.50	$ 0.04

Earnings Per Share (Details Textual) - shares	3 Months Ended
Earnings Per Share (Details Textual) - shares	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share (Textual) [Abstract]
Weighted average common stock equivalents antidilutive	78,900	22,000

Borrowings (Details Textual) $ in Millions	3 Months Ended	12 Months Ended
Borrowings (Details Textual) $ in Millions	Mar. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)
Borrowings (Textual) [Abstract]
Aggregate principal amount	$ 450.0
Borrowings (Additional Textual) [Abstract]
Period of revolving credit facility	5 years
Period of term loan facility	5 years
Aggregate amount of option available to increase the revolving credit facility	$ 50.0
Percentage of other equity interests in domestic subsidiaries	100.00%
Percentage of other equity interests in foreign subsidiaries	65.00%
Percentage of Federal Funds Rate	0.50%
Percentage of Eurodollar Rate	1.00%
Percentage of original principal balance in year one		4.90%
Percentage of original principal balance in year two		11.70%
Percentage of original principal balance in year three		12.40%
Percentage of original principal balance in year four		14.20%
Percentage of original principal balance in year five		14.80%
Percentage of original principal balance in year six		42.00%
Maturity date	Aug. 31, 2017
Credit Agreement, dividends restriction amount	$ 50.0
Percentage of cumulative consolidated net income	50.00%
Percentage of net cash proceeds from equity issuances	50.00%
Actual fixed charge coverage ratio	3.81
Minimum fixed charge coverage ratio	2.25
Actual leverage ratio	1.54
Maximum leverage ratio	3.25
Outstanding letters of credit	$ 5.1
Minimum net worth amount	$ 150.0
Percentage of weighted average interest rate of borrowings	2.60%	2.50%
Unused borrowing capacity under Credit Agreement	$ 227.4
Borrowings outstanding under credit facility	202.5	$ 192.5
Revolving Credit Facility [Member]
Borrowings (Textual) [Abstract]
Aggregate principal amount	247.5
Term Loan Facility [Member]
Borrowings (Textual) [Abstract]
Aggregate principal amount	$ 202.5

Restructuring Charges (Details Textual) $ in Thousands	3 Months Ended
Restructuring Charges (Details Textual) $ in Thousands	Dec. 31, 2012 Office	Mar. 31, 2012 USD ($)	Mar. 31, 2013 USD ($)
Restructuring Charges (Textual) [Abstract]
Restructuring charge liability			$ 1,000
Pre-tax restructuring expenses		$ 830
New York [Member]
Restructuring Charges (Additional Textual) [Abstract]
Number of offices relocated \| Office	1

Derivative Instruments and Hedging Activity (Details) - USD ($) $ in Thousands	Mar. 31, 2013	Dec. 31, 2012
Accrued expenses [Member]
Fair Value interest rate swaps designated as cash flow hedging instruments
Fair Value (Derivative Liability)	$ 455	$ 493
Deferred compensation and other liabilities [Member]
Fair Value interest rate swaps designated as cash flow hedging instruments
Fair Value (Derivative Liability)	$ 365	$ 439

Derivative Instruments and Hedging Activity (Details Textual) - USD ($) $ in Millions	1 Months Ended				3 Months Ended
	Apr. 30, 2013	May 31, 2012	Dec. 31, 2011	Mar. 31, 2009	Mar. 31, 2013	Apr. 04, 2013	May 30, 2012	Dec. 08, 2011	Mar. 20, 2009
Derivative Instruments and Hedging Activity (Textual) [Abstract]
Interest rate swap agreement for a notional amount						$ 60.0	$ 37.0	$ 56.6	$ 100.0
Interest rate swap agreement, effective date		May 31, 2012	Feb. 29, 2012	Mar. 31, 2009	Mar. 31, 2014
Interest rate swap agreement, end date		Apr. 14, 2016	Apr. 14, 2016	Feb. 23, 2012	Aug. 31, 2017
Variable-rate borrowings outstanding									100.0
Fixed-rate borrowings									$ 100.0
Duration of LIBOR	1 month	1 month	1 month	1 month
Percentage of fixed rate						0.985%	0.70%	0.9875%	1.715%
Anticipated net losses, net of tax, currently recorded in OCI reclassified into earnings					$ 0.3

Fair Value of Financial Instruments (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2013	Dec. 31, 2012
Liabilities:
Liabilities, fair value	$ 11,362	$ 11,457
Deferred acquisition payments [Member]
Liabilities:
Liabilities, fair value	10,542	10,525
Promissory note [Member]
Asset:
Asset, fair value	2,974	2,907
Interest rate swaps [Member]
Liabilities:
Liabilities, fair value	820	932
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Liabilities:
Liabilities, fair value
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Deferred acquisition payments [Member]
Liabilities:
Liabilities, fair value
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Promissory note [Member]
Asset:
Asset, fair value
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Interest rate swaps [Member]
Liabilities:
Liabilities, fair value
Significant Other Observable Inputs (Level 2) [Member]
Liabilities:
Liabilities, fair value	820	932
Significant Other Observable Inputs (Level 2) [Member] \| Interest rate swaps [Member]
Liabilities:
Liabilities, fair value	820	932
Significant Unobservable Inputs (Level 3) [Member]
Liabilities:
Liabilities, fair value	10,542	10,525
Significant Unobservable Inputs (Level 3) [Member] \| Deferred acquisition payments [Member]
Liabilities:
Liabilities, fair value	10,542	10,525
Significant Unobservable Inputs (Level 3) [Member] \| Promissory note [Member]
Asset:
Asset, fair value	$ 2,974	$ 2,907

Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2011	Dec. 30, 2011
Fair Value of Financial Instruments (Textual) [Abstract]
Discount rate used to value promissory note	14.00%
Fair Value of Financial Instruments (Additional Textual) [Abstract]
Promissory note received for sale of AA			$ 3.5
Promissory note payable period		4 years
Consideration received as promissory note payable, 2013	$ 0.2
Consideration received as promissory note payable, 2015	$ 1.1
Promissory note [Member]
Fair Value of Financial Instruments (Textual) [Abstract]
Promissory note payable maturity date	Dec. 31, 2015
Maximum [Member]
Fair Value of Financial Instruments (Textual) [Abstract]
Discount rate used to value promissory note	8.00%
Deferred acquisition payment terms	2 years
Minimum [Member]
Fair Value of Financial Instruments (Textual) [Abstract]
Discount rate used to value promissory note	4.00%
Deferred acquisition payment terms	1 year

Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Other comprehensive (loss) income:
Foreign currency translation adjustment, before taxes	$ (1,048)	$ 353
Foreign currency translation adjustment, tax (expense) benefit	51	(114)
Foreign currency translation adjustment, net of taxes	(997)	239
Unrealized gain on cash flow hedges:
Change in fair value, before taxes	(25)	(173)
Change in fair value, tax (expense) benefit	11	70
Change in fair value, net of taxes	(14)	(103)
Reclassification adjustments into earnings, before taxes	137	254
Reclassification adjustments into earnings, tax (expense) benefit	(55)	(102)
Reclassification adjustments into earnings, net of taxes	82	152
Net unrealized gain, before taxes	112	81
Net unrealized gain, tax (expenses) benefit	(44)	(32)
Net unrealized gain, net of taxes	68	49
Other comprehensive (loss) income, before taxes	(936)	434
Other comprehensive (loss) income, tax (expense) benefit	7	(146)
Other comprehensive (loss) income	$ (929)	$ 288

Other Comprehensive (Loss) Income (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Components of accumulated other comprehensive loss, net of tax
Foreign Currency Translation Adjustments, Beginning balance	$ (805)
Foreign Currency Translation Adjustments, Current period change	(997)	$ 239
Foreign Currency Translation Adjustments, Ending balance	(1,802)
Net Unrealized Gains/(Losses) on Derivatives, Beginning balance	(554)
Net Unrealized Gains/(Losses) on Derivatives, Current period change	68	49
Net Unrealized Gains/(Losses) on Derivatives, Ending balance	(486)
Accumulated Other Comprehensive Loss, Beginning balance	(1,359)
Accumulated Other Comprehensive Loss, Current period change	(929)	$ 288
Accumulated Other Comprehensive Loss, Ending balance	$ (2,288)

Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Income Taxes (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2013	Mar. 31, 2012
Income Taxes (Textual) [Abstract]
Effective tax rates	41.70%	72.10%
Impact of foreign losses	$ 0

Commitments, Contingencies and Guarantees (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2013	Jun. 30, 2012	Dec. 31, 2012
Commitments, Contingencies and Guarantees (Textual) [Abstract]
Maximum amount of civil penalties per violation under the federal False Claims Act	$ 11,000
Maximum amount of civil penalties per violation under the state False Claims Act	12,000
Alleged amount of outlier payments received	30,000,000
Settlement charges recorded during period	1,150,000	$ 1,200,000
Guarantees in the form of letters of credit	$ 5,100,000		$ 5,100,000

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
Segment Information (Details) - USD ($) $ in Thousands	Mar. 31, 2013	Mar. 31, 2012
Components of Segment Information
Revenues	$ 164,036	$ 138,637
Operating income (loss)	21,343	3,637
Reimbursable expenses	15,336	13,796
Total revenues and reimbursable expenses	179,372	152,433
Statement of Earnings reconciliation:
Segment operating income	46,658	31,241
Charges not allocated at the segment level:
Other selling, general and administrative expenses	20,536	22,951
Depreciation and amortization expense	4,779	4,653
Other expense, net	1,850	1,533
Income from continuing operations before income tax expense	19,493	2,104
Huron Healthcare [Member]
Components of Segment Information
Revenues	78,745	63,465
Operating income (loss)	$ 31,161	$ 15,838
Segment operating income (loss) as a percent of segment revenues	39.60%	25.00%
Huron Legal [Member]
Components of Segment Information
Revenues	$ 40,944	$ 41,383
Operating income (loss)	$ 2,938	$ 9,511
Segment operating income (loss) as a percent of segment revenues	7.20%	23.00%
Huron Education and Life Sciences [Member]
Components of Segment Information
Revenues	$ 35,726	$ 27,676
Operating income (loss)	$ 9,352	$ 6,458
Segment operating income (loss) as a percent of segment revenues	26.20%	23.30%
Huron Financial [Member]
Components of Segment Information
Revenues	$ 8,582	$ 5,849
Operating income (loss)	$ 3,379	$ 233
Segment operating income (loss) as a percent of segment revenues	39.40%	4.00%
All Other [Member]
Components of Segment Information
Revenues	$ 39	$ 264
Operating income (loss)	$ (172)	$ (799)
Segment operating income (loss) as a percent of segment revenues

Segment Information (Details 1) - USD ($) $ in Thousands	Mar. 31, 2013	Dec. 31, 2012
Segment assets:
Total assets	$ 776,075	$ 787,900
Huron Healthcare [Member]
Segment assets:
Total assets	78,050	60,288
Huron Legal [Member]
Segment assets:
Total assets	44,973	51,594
Huron Education and Life Sciences [Member]
Segment assets:
Total assets	31,985	31,129
Huron Financial [Member]
Segment assets:
Total assets	5,394	1,462
All Other [Member]
Segment assets:
Total assets	41	50
Unallocated assets [Member]
Segment assets:
Total assets	$ 615,632	$ 643,377

Segment Information (Details Textual)	3 Months Ended	12 Months Ended
Segment Information (Details Textual)	Mar. 31, 2013 Segment Client	Dec. 31, 2012 Client
Segment Information (Textual) [Abstract]
Number of operating segments \| Segment	5
Percentage of total receivables and unbilled services balances for which no single client reached	10.00%	10.00%
Number of single client accounted for greater than 10% of combined receivables and unbilled services balances	0	0
Customer revenues as a percentage of consolidated revenue, for which no single client reached	10.00%	10.00%
Number of single client generated greater than 10% of consolidated revenues	0	0