INCOME TAXES, Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current [Abstract]
Federal	$ 32,829	$ 27,663	$ 30,006
State and other	4,890	2,608	870
Deferred [Abstract]
Federal	11,444	9,604	6,867
State and other	1,622	1,112	594
Provision for income taxes	$ 50,785	$ 40,987	$ 38,337