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Income Taxes - Summary of Significant Components of the Income Tax Provision From Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ 3,685	$ (876)
State	1,716	1,558	$ 16
Foreign	8,177	9,342	9,824
Total current	13,578	10,024	9,840
Deferred:
Federal	8,427	1,854	(9,486)
State	(598)	(164)	(125)
Foreign	(157)	(1,221)	(120)
Total deferred	7,672	469	(9,731)
Income tax expense	$ 21,250	$ 10,493	$ 109

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