Equity (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
EQUITY (Textual) [Abstract]
Employee Stock Purchase Plan shares issued during period	3,440
Shares of vested stock awards sold back to satisfy tax obligations	11,120
Outstanding unvested equity compensation awards	474,000
Additional equity compensation awards that could vest if certain targets are achieved	138,000
Number of Class A shares equal to unvested dividend rights	1,325
Share Price	$ 78.85
Equity compensation awards granted during the period	207,786
Weighted average grant date fair value of equity awards granted during the period	$ 77.14
Warrants issued	1,360,823
Warrant liability	$ 76,084	$ 58,134
Closing price of warrants	$ 55.91
Income tax expense, related to change in benefit plans	0
Other Comprehensive Income (Loss), Foreign Currency Translation Gain (Loss) Arising During Period, Tax	2,342
Warrants Issued On Emergence Date [Member]
EQUITY (Textual) [Abstract]
Warrants issued	1,634,210
Warrants Subsequently Issued In Settlement Of Pre-Petition Claims [Member]
EQUITY (Textual) [Abstract]
Warrants issued	242,850
Class of Warrant or Right, To Be Issued	544,737
Warrants Exercised [Member]
EQUITY (Textual) [Abstract]
Warrants issued	0
Stock Compensation Plan [Member]
EQUITY (Textual) [Abstract]
Vested common stock	168,871
Equity settled UUD [Member]
EQUITY (Textual) [Abstract]
Unvested Dividend Equivalent Value	104
Cash settled UUD [Member]
EQUITY (Textual) [Abstract]
Unvested Dividend Equivalent Value	$ 128