LONG-TERM DEBT AND OTHER FINANCING ARRANGEMENTS Financing Transactions (Details) $ / shares in Units, € in Millions			12 Months Ended
		Apr. 07, 2016 USD ($)	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jan. 01, 2018 USD ($)	Dec. 31, 2016 EUR (€) shares	May 02, 2014 $ / shares shares
Debt Instrument [Line Items]
Financial Covenant, Net Leverage			5
Accrued interest payable			$ 2,941,000	$ 914,000
Loss on extinguishment of debt (Note 4)			(150,158,000)	0	$ (39,203,000)
2021 Euro Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 534,000,000	$ 494,162,000				€ 468.8
Stated interest rate			1.50%				1.50%
Financial Covenant, Net Leverage			5
2017 Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 38,200,000
Stated interest rate		15.00%
Accrued interest payable		$ 1,500,000
2018 Euro Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 264,368,000				€ 250.8
Stated interest rate			1.50%				1.50%
Debt Instrument, Term, Period of Extension		1 year
2017 PIK Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 502,500,000
Stated interest rate		15.00%
Accrued interest payable		$ 26,600,000
2021 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 115,000,000
Debt Instrument, Face Amount			$ 0
Stated interest rate	[1]		9.00%				9.00%
Guarantee Fee [Member]
Debt Instrument [Line Items]
Interest Paid, Net			$ (48,600,000)	$ 0	$ 0
2018 Warrants [Member]
Debt Instrument [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares								$ 1.00
Common Class A [Member] | 2018 Warrants [Member]
Debt Instrument [Line Items]
Class of Warrant or Right, Outstanding | shares			107,003,045				107,003,045	114,000,000
Common Class A [Member] | 2018 Warrants [Member] | Time Warner and TW Investor [Member]
Debt Instrument [Line Items]
Class of Warrant or Right, Outstanding | shares			100,926,996				100,926,996
Subsequent Event [Member] | 2021 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 50,000,000.0
Maximum [Member]
Debt Instrument [Line Items]
Financial Covenant, Net Leverage			7
Maximum [Member] | 2021 Euro Term Loan [Member]
Debt Instrument [Line Items]
Financial Covenant, Net Leverage			8
Maximum [Member] | 2021 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Financial Covenant, Net Leverage			7
Minimum [Member] | 2021 Euro Term Loan [Member]
Debt Instrument [Line Items]
Financial Covenant, Net Leverage			5
Minimum [Member] | 2021 Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Financial Covenant, Net Leverage			5

[1] (2) As at December 31, 2016, the aggregate principal amount available under the 2021 Revolving Credit Facility was undrawn.