STOCKHOLDERS' EQUITY Common Stock Repurchases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Stockholders' Equity Attributable to Parent [Abstract]
Repurchase of common stock			$ 7,300
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 43,900		$ 43,900		$ 51,200
Stock Repurchased During Period, Shares	0	434,000	121,000	932,000