Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax [Line Items]
Undistributed earnings of foreign subsidiaries	$ 309,047,000	$ 266,317,000
Tax loss carryforwards	4,655,000	2,224,000
Tax credit carryforwards	1,599,000	1,120,000
Valuation Allowance	1,815,000	1,443,000
Unrecognized tax benefits	1,931,000	1,958,000	$ 464,000	$ 240,000
Unrecognized tax benefits that, if recognized, would impact effective tax rates	1,921,000	1,948,000	454,000
Recognition of interest and penalties accrued related to unrecognized tax benefits as income tax expense	9,000	6,000	$ 6,000
Income tax liability for interest and penalties	53,000	$ 44,000
Income tax return adjustments	0
Minimum [Member]
Income Tax [Line Items]
Unrecognized tax benefits related to its current uncertain tax positions	0
Maximum [Member]
Income Tax [Line Items]
Unrecognized tax benefits related to its current uncertain tax positions	$ 1,500,000