LONG-TERM DEBT AND OTHER FINANCING ARRANGEMENTS Debt (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
Long-term Debt, Fair Value		$ 1,123,119	$ 1,103,298
Long-term Debt, Current and Noncurrent [Abstract]
Carrying Value of Senior Debt		919,812	867,367
Other credit facilities and capital leases		3,648	6,732
Total long-term debt and other financing arrangements		923,460	874,099
Less: current maturities		(1,155)	(252,859)
Long-term debt and other financing arrangements		922,305	$ 621,240
Long-term Debt, Fiscal Year Maturity [Abstract]
2015		0
2016	[1]	813,744
2017		0
2018		256,210
2019		0
2020 and thereafter		0
Total senior debt and credit facilities		1,069,954
Less: net discount		150,142
Carrying amount of senior debt and credit facilities		$ 919,812

[1] 2016$—2017 (1)813,7442018—2019256,2102020—2021 and thereafter—Total senior debt and credit facilities1,069,954Less: net discount(150,142)Carrying amount of senior debt and credit facilities$919,812(1) On February, 19, 2016, we entered into an agreement for the EUR 468.8 million (approximately US$ 510.4 million) 2021 Euro Term Loan, the proceeds of which will be drawn on or about April 7, 2016 and be applied to repay the 2017 Term Loan and redeem and discharge the 2017 PIK Notes, which we expect will be completed on or about April 8, 2016. Also on February 19, 2016, we agreed to extend the maturity date of the 2018 Euro Term Loan to November 1, 2018, reduce the interest cost of amounts drawn on the 2021 Revolving Credit Facility as our leverage ratio improves, and extend the maturity date of the 2021 Revolving Credit Facility at the current borrowing capacity until January 1, 2018 and with a borrowing capacity US$ 50.0 million from January 1, 2018 to the maturity date on February 19, 2021, with effect from the drawing of the 2021 Euro Term Loan (see Note 26, "Subsequent Events"