INCOME TAX - Components of Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended						6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2016	Jun. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Current federal taxes											$ (2,924)	$ 0	$ 0
Current state taxes											166	12	120
Current foreign taxes											841	1,441	545
Current tax expense (benefit)											(1,917)	1,453	665
Deferred:
Deferred federal taxes											(41,054)	(3,295)	0
Deferred state taxes											(5,032)	(330)	0
Deferred foreign taxes											(56)	(17,718)	(642)
Deferred tax expense (benefit)											(46,142)	(21,343)	(642)
Income tax benefit	$ (1,625)	$ (100)	$ (47,935)	$ 4,362	$ 7,556	$ 2,040	$ (48,035)	$ 9,596	$ (49,660)	$ 13,958	$ (48,059)	$ (19,890)	$ 23