Fair Value Measurements - Fair Value Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration		$ (5,658)	$ (5,658)
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration		(5,658)	(5,658)
Fair Value, Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Forward currency exchange contracts				$ (125)
Forward currency exchange contracts			151
Non-qualified savings plan assets	[1]	1,545	1,075	1,158
Contingent consideration		(5,658)	(5,658)
Total		(4,113)	(4,432)	1,033
Fair Value, Measurements, Recurring | Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Non-qualified savings plan assets	[1]	1,545	1,075	1,158
Total		1,545	1,075	1,158
Fair Value, Measurements, Recurring | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Forward currency exchange contracts				(125)
Forward currency exchange contracts			151
Total			151	$ (125)
Fair Value, Measurements, Recurring | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration		(5,658)	(5,658)
Total		$ (5,658)	$ (5,658)

[1] The non-qualified savings plan assets are included in “Other receivables and prepaid expenses” in the Company’s consolidated balance sheets and have an offsetting liability of equal amount, which is included in “Accounts payable and accrued expenses” in the Company’s consolidated balance sheets.