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Disclosure - Restructuring Charges link:presentationLink link:calculationLink link:definitionLink 2339306 - Disclosure - Restructuring Charges - (Tables) link:presentationLink link:calculationLink link:definitionLink 2440423 - Disclosure - Restructuring Charges - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 2441424 - Disclosure - Restructuring Charges Restructuring Charges - Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 2142112 - Disclosure - Derivative Instruments and Hedging Activity link:presentationLink link:calculationLink link:definitionLink 2343307 - Disclosure - Derivative Instruments and Hedging Activity (Tables) link:presentationLink link:calculationLink link:definitionLink 2444425 - Disclosure - Derivative Instruments and Hedging Activity - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 2445426 - Disclosure - Derivative Instruments and Hedging Activity - Fair Value Interest Rate Swaps Designated as Cash Flow Hedging Instruments (Detail) link:presentationLink link:calculationLink link:definitionLink 2146113 - Disclosure - Fair Value of Financial Instruments link:presentationLink link:calculationLink link:definitionLink 2247203 - Disclosure - Fair Value of Financial Instruments - (Policies) link:presentationLink link:calculationLink link:definitionLink 2348308 - Disclosure - Fair Value of Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 2449427 - Disclosure - Fair Value of Financial Instruments - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) link:presentationLink link:calculationLink link:definitionLink 2450428 - Disclosure - Fair Value of Financial Instruments - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 2451429 - Disclosure - Fair Value of Financial Instruments Fair Value of Financial Instruments - Convertible Debt Investment Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 2452430 - 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Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink