Financial Instruments and Derivatives - Additional Information (Detail)				12 Months Ended							12 Months Ended		12 Months Ended		12 Months Ended									12 Months Ended				12 Months Ended			12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2012 CHF	Dec. 31, 2013 Cash Flow Hedging USD ($)	Dec. 31, 2012 Cash Flow Hedging USD ($)	Dec. 31, 2013 Net Investment Hedging USD ($)	Dec. 31, 2012 Net Investment Hedging USD ($)	Dec. 31, 2010 Net Investment Hedging USD ($)	Dec. 31, 2013 Foreign Exchange Forward USD ($)	Dec. 31, 2013 Foreign Exchange Contract USD ($)	Dec. 31, 2013 Cross Currency Basis Swaps USD ($)	Dec. 31, 2012 Cross Currency Basis Swaps USD ($)	Dec. 31, 2013 Net Investment Hedging USD ($)	Dec. 31, 2012 Net Investment Hedging USD ($)	Dec. 31, 2013 Private Placement Notes Interest Rate Swap Fair Value Hedging	Sep. 30, 2013 Private Placement Notes Interest Rate Swap Fair Value Hedging USD ($)	Apr. 04, 2011 Private Placement Notes Interest Rate Swap Fair Value Hedging USD ($)	Feb. 28, 2010 Private Placement Notes Interest Rate Swap Fair Value Hedging USD ($)	Dec. 31, 2013 Unsecured Senior Notes Tranche C USD ($)	Dec. 31, 2013 Not Designated as Hedging Instrument Cross Currency Basis Swaps EUR (€)	Sep. 16, 2013 Not Designated as Hedging Instrument Currency Swap [Member] EUR (€)	Jun. 27, 2013 Not Designated as Hedging Instrument Currency Swap [Member] EUR (€)	Dec. 31, 2012 Not Designated as Hedging Instrument Foreign Exchange Contract CHF	Dec. 31, 2013 Not Designated as Hedging Instrument Cross Currency Basis Swaps USD ($)	Dec. 31, 2013 Designated as Hedging Instrument [Member]	Dec. 31, 2013 Japan, Yen Designated as Hedging Instrument [Member] Interest Rate Swap USD ($)	Dec. 31, 2013 Switzerland, Francs Cross Currency Basis Swaps CHF	Dec. 31, 2013 Switzerland, Francs Designated as Hedging Instrument [Member] Interest Rate Swap USD ($)	Dec. 31, 2013 Euro Member Countries, Euro Designated as Hedging Instrument [Member] Foreign Exchange Forward EUR (€)	Dec. 31, 2013 Euro Member Countries, Euro Designated as Hedging Instrument [Member] Net Investment Hedging EUR (€)	Dec. 31, 2013 Total Other Expense (Income), Net [Member] Not Designated as Hedging Instrument Cross Currency Basis Swaps EUR (€)	Dec. 31, 2013 Total Other Expense (Income), Net [Member] Not Designated as Hedging Instrument Currency Swap [Member] EUR (€)	Dec. 31, 2013 Total Other Expense (Income), Net [Member] Not Designated as Hedging Instrument Foreign Exchange Contract USD ($)	Dec. 31, 2013 Maturing in the Next Twelve Months [Member] Foreign Exchange Contract USD ($)	Dec. 31, 2013 Maturing in the Next Twelve Months [Member] Cross Currency Basis Swaps USD ($)	Dec. 31, 2013 Maturing in the Next Twelve Months [Member] Not Designated as Hedging Instrument Cross Currency Basis Swaps USD ($)	Dec. 31, 2013 Maturing In Year Two [Member] Foreign Exchange Contract USD ($)	Dec. 31, 2013 Maturing In Year Two [Member] Cross Currency Basis Swaps USD ($)	Dec. 31, 2013 Maturing In Year Two [Member] Not Designated as Hedging Instrument Cross Currency Basis Swaps USD ($)
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax																								$ 7,700,000
Advances to Affiliate			241,400,000
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments																															2,200,000	3,700,000	7,000,000
Terminated Notional Amount of Other Derivatives Not Designated as Hedging Instruments																				347,800,000
Derivative, Notional Amount																	150,000,000				48,000,000	36,000,000	241,400,000			12,600,000,000	295,500,000	65,000,000	22,000,000	533,800,000				705,078,000	90,084,000	730,494,000	59,127,000	63,417,000
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net											55,200,000		52,700,000
Derivative, Term of Contract																										3 years		5 years
Debt Instrument, Basis Spread on Variable Rate																									0.316%
Derivative, maturity date															Feb. 28, 2016											Sep. 30, 2014		Sep. 30, 2016
Ineffective portion Recognized in Income				610,000	890,000
Effective Portion Reclassified from AOCI into Income				(2,932,000)	5,333,000
Debt Instrument, Face Amount																		250,000,000	450,000,000
Derivative, Term of Contract															5 years
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax						(10,121,000)	(71,358,000)	(143,730,000)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	249,900,000	177,700,000											10,100,000	71,400,000
Derivative, Fixed Interest Rate																	4.10%									0.20%		0.70%
Interest Rate Derivatives, at Fair Value, Net																2,400,000
Derivative, Higher Remaining Maturity Range											18 months
Derivative Liability, Fair Value, Gross Liability									5,100,000		18,100,000	90,700,000
Derivative Assets (Liabilities), at Fair Value, Net	$ (18,106,000)									$ (5,112,000)														$ (40,492,000)															$ 46,370,000