GOODWILL AND INTANGIBLE ASSETS (Amortization) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Nov. 30, 2016	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Future amortization for intangible assets and acquired software
2017		$ 7,236	$ 7,236
2018		6,654	6,654
2019		5,469	5,469
2020		4,471	4,471
2021		4,418	4,418
Thereafter		23,301	23,301
Total amortization		51,549	51,549
Future amortization for intangible assets
2017		4,538	4,538
2018		4,520	4,520
2019		4,482	4,482
2020		4,454	4,454
2021		4,412	4,412
Thereafter		23,301	23,301
Net Value		45,707	45,707	$ 41,665
Future amortization for acquired software
2017		2,698	2,698
2018		2,134	2,134
2019		987	987
2020		17	17
2021		6	6
Total amortization, Acquired software		5,842	5,842
Impairment Assessment of Long-Lived Assets
Impairment of indefinite-lived intangible assets			0	$ 0
Restructuring charges		$ 10,300	10,313
Software impairment
Impairment Assessment of Long-Lived Assets
Restructuring charges	$ 6,200		$ 6,244
Software impairment | Acquired Software
Impairment Assessment of Long-Lived Assets
Restructuring charges	$ 5,500