EQUITY STRUCTURE AND ACCOUNTS - Schedule of Treasury Stock Repurchase Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Oct. 30, 2014	Feb. 10, 2014
Class of Stock [Line Items]
Share Price			$ 17.00
Shares Repurchase Program [Roll Forward]
Purchase of treasury stock	$ (994)
2014 Share Repurchase Authorization Program
Class of Stock [Line Items]
Percentage of Aggregate Common Stock Outstanding Under Repurchase Program	7.10%
Shares Repurchase Program [Roll Forward]
Authorizations remaining as of December 31, 2015	$ 49,000
2014 Share Repurchase Authorization Program | Class A common stock
Class of Stock [Line Items]
Authorized amount of stock repurchase		$ 50,000
Shares Repurchase Program [Roll Forward]
Authorizations remaining as of December 31, 2014	$ 50,000
Treasury Stock, Shares, Acquired	84,203
Purchase of treasury stock	$ (994)
Authorizations remaining as of December 31, 2015	$ 49,006