Fair Value Measurements (Schedule of Company Financial Assets and Liabilities at Fair Value on Recurring Basis) (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	$ 5,071	$ 5,369
Foreign exchange contracts	(373)
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	5,071	5,369
Foreign exchange contracts	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Foreign exchange contracts	(373)
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	$ 0
Foreign exchange contracts	$ 0