Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of year	$ 1,884	$ 1,257	$ 1,148
Additions based on tax positions related to the current year	230	401	233
Additions for tax positions of prior years	46	523	53
Reductions for tax positions of prior years	(437)	0	0
Settlements or lapse of statute of limitations	(364)	(297)	(177)
Balance at end of year	$ 1,359	$ 1,884	$ 1,257