LONG-TERM DEBT AND OTHER FINANCING ARRANGEMENTS Senior Debt (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Debt Instrument [Line Items]
Carrying Amount	$ 802,517		$ 956,956
2015 Convertible Notes [Member]
Debt Instrument [Line Items]
Carrying Amount	246,251		241,193
Fair Value	258,040		237,011
2016 Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Carrying Amount	0		379,182
2017 Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Carrying Amount	332,700		336,581
Fair Value	345,820		344,223
2017 PIK Notes [Member]
Debt Instrument [Line Items]
Carrying Amount	$ 223,566	[1]	$ 0

[1] The 2017 PIK Notes were issued, along with the Unit Warrants, as a unit in the Rights Offering and related financing transactions. The equity component above represents the fair value ascribed to the Unit Warrants (see Note 14, "Equity"). The fair value is accounted for as a discount on the 2017 PIK Notes and is being amortized over the life of the 2017 PIK Notes using the effective interest method.