Income Taxes (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Examination [Line Items]
Effective income tax rate	30.00%	34.20%	23.20%
Undistributed earnings of foreign subsidiaries	$ 179,100
Tax loss and credit carryforwards	9,318	$ 16,533
Deferred tax asset valuation allowance	6,202	7,691	$ 7,302	$ 7,992
Tax credit carryforwards, foreign	10,100
Tax credit carryforwards, research	6,100
Tax credit carryforwards, AMT	500
Excluded tax credit carryforwards, foreign	10,100
Excluded tax credit carryforwards, research	2,100
Excluded tax credit carryforwards, AMT	400
Income taxes paid, net of refunds	18,700	14,500	11,100
Unrecognized tax benefits	10,571	9,368	9,148
Unrecognized tax benefits that would impact effective tax rate	100
Unrecognized tax benefits, interest and penalties accrued	1,300	1,200
Income Tax Examination, Interest Expense	(100)	$ (100)	$ 900
Minimum amount of unrecognized tax benefits that could be recognized over next 12 months	8,300
Minimum
Income Tax Examination [Line Items]
State operating loss carryforwards	500
Minimum | Arizona
Income Tax Examination [Line Items]
Tax loss and credit carryforwards	7,600
Capital loss carryforwards	1,300
Maximum
Income Tax Examination [Line Items]
State operating loss carryforwards	8,500
China
Income Tax Examination [Line Items]
State operating loss carryforwards	$ 200