Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 129,671	$ 74,345	$ 62,266
Other comprehensive loss:
Net foreign currency translation adjustment	(1,798)	0	0
Total comprehensive income	$ 127,873	$ 74,345	$ 62,266