Financial Instruments and Fair Value Measurements - Schedule of Fair Value of Derivative Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Asset	$ 40,800	$ 106,664
Liability	20,341	1,395
Foreign Currency Options [Member] \| EUR [Member]
Derivatives, Fair Value [Line Items]
Asset	10,304	7,742
Liability	1,282
Foreign Currency Options [Member] \| GBP [Member]
Derivatives, Fair Value [Line Items]
Asset	1,373
Liability	1,316
Foreign Currency Options [Member] \| JPY [Member]
Derivatives, Fair Value [Line Items]
Asset	1,025
Liability	791
Foreign Currency Options [Member] \| CAD [Member]
Derivatives, Fair Value [Line Items]
Asset	2,269
Interest Rate Hedges [Member]
Derivatives, Fair Value [Line Items]
Liability	16,878	1,395
Net Investment Hedges [Member] \| EUR [Member]
Derivatives, Fair Value [Line Items]
Asset		22,891
Net Investment Hedges [Member] \| GBP [Member]
Derivatives, Fair Value [Line Items]
Asset	25,829	29,097
Net Investment Hedges [Member] \| JPY [Member]
Derivatives, Fair Value [Line Items]
Asset		$ 46,934
Cash Flow Hedge [Member] \| Foreign Currency Options [Member] \| Peso Denominated [Member]
Derivatives, Fair Value [Line Items]
Liability	$ 74

Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611

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- Definition

Aggregate fair value of all derivative liabilities designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

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