Fair Value of Financial Instruments - Summary of Fair Value Information and Derivative Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financial Assets
Deferred Compensation Investment	$ 1,699	$ 2,524
Foreign Currency Contract	64	462
Assets Fair Value Disclosure	1,763	2,986
Financial Liabilities
Deferred Compensation Liability	1,699	2,524
Foreign Currency Contract	560	180
Liabilities Fair Value Disclosure	2,259	2,704
Fair Value, Inputs, Level 1 [Member]
Financial Assets
Deferred Compensation Investment	1,699	2,503
Foreign Currency Contract	0	0
Assets Fair Value Disclosure	1,699	2,503
Financial Liabilities
Deferred Compensation Liability	1,699	2,503
Foreign Currency Contract	0	0
Liabilities Fair Value Disclosure	1,699	2,503
Fair Value, Inputs, Level 2 [Member]
Financial Assets
Deferred Compensation Investment	0	21
Foreign Currency Contract	64	462
Assets Fair Value Disclosure	64	483
Financial Liabilities
Deferred Compensation Liability	0	21
Foreign Currency Contract	560	180
Liabilities Fair Value Disclosure	560	201
Fair Value, Inputs, Level 3 [Member]
Financial Assets
Deferred Compensation Investment	0	0
Foreign Currency Contract	0	0
Assets Fair Value Disclosure	0	0
Financial Liabilities
Deferred Compensation Liability	0	0
Foreign Currency Contract	0	0
Liabilities Fair Value Disclosure	$ 0	$ 0