Debt - Additional Information (Detail) € in Millions				3 Months Ended		6 Months Ended		12 Months Ended
	May. 27, 2015 EUR (€)	May. 11, 2015 USD ($)	Mar. 26, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jun. 30, 2015 USD ($)
Debt Instrument [Line Items]
Short-term borrowings outstanding				$ 1,336,000		$ 1,336,000		$ 1,021,000
Lines of credit				53,000,000		53,000,000		69,100,000
Increase in line of credit facility			$ 500,000,000
Borrowings under the Term Facility				4,384,000		4,384,000		4,550,000
Interest expense, net				7,666,000	$ 2,183,000	15,925,000	$ 4,860,000
Interest expense, gross				8,600,000	2,700,000	17,400,000	5,800,000
Non-cash portion of interest expense				700,000	600,000	1,400,000	1,100,000
Cash portion of gross interest expense				7,900,000	2,100,000	16,000,000	4,700,000
Interest income				900,000	$ 500,000	1,500,000	$ 900,000
Letters of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 50,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Lines of credit				258,100,000		$ 258,100,000		283,100,000
Senior Notes [Member] | 2.000 Percent Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount | €	€ 350.0
Debt instrument, interest rate	2.00%
Debt instrument, maturity date						May 27, 2022
Debt instrument, par value percentage	99.613%
Debt discount to be amortized	€ 1.4			1,353,000		$ 1,353,000		1,490,000
Debt issuance cost to be amortized | €	2.6
Proceeds from the issuance of debt | €	€ 346.0
Effective interest rate	2.06%
Senior Notes [Member] | 4.150 Percent Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount		$ 400,000,000
Debt instrument, interest rate		4.15%
Debt instrument, maturity date						May 15, 2025
Debt instrument, par value percentage		99.336%
Debt discount to be amortized		$ 2,700,000		2,516,000		$ 2,516,000		2,626,000
Debt issuance cost to be amortized		3,800,000
Proceeds from the issuance of debt		$ 393,500,000
Effective interest rate		4.232%
Multi-Currency Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Unsecured revolving credit facility, period of agreement, in years			5 years
Current borrowing capacity			$ 750,000,000
Aggregate Commitment			$ 1,200,000,000
Borrowings under the Term Facility				4,700,000		4,700,000		4,800,000
Unused available credit				$ 937,200,000		937,200,000		912,100,000
Fees and other expenses						$ 3,000,000		$ 3,000,000