INCOME TAXES - Schedule of Income Taxes Provision (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current expense (benefit)
U.S. Federal									$ 9,020	$ 23,609
State and local									2,637	10,170
Total current expense (benefit)									11,657	33,779
Deferred expense (benefit)
U.S. Federal									2,247	(4,357)
State and local									653	(2,817)
Total deferred expense (benefit)									2,900	(7,174)
Provision for Income tax expense (benefit)	$ 10,457	$ (4,181)	$ 5,177	$ 3,104	$ 2,783	$ 10,335	$ 8,199	$ 5,289	$ 14,557	$ 26,605	$ 3,730