Income Taxes - Summary of Earnings Before Income Taxes From Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
Foreign	$ 33,611	$ 35,571	$ 33,349
United States	31,118	2,364	7,938
Income from continuing operations before income taxes	$ 64,729	$ 37,935	$ 41,287