Derivative Financial Instruments (Details 3) (Cash flow hedges, USD $)	1 Months Ended	12 Months Ended		11 Months Ended	1 Months Ended	12 Months Ended		11 Months Ended	1 Months Ended	12 Months Ended	11 Months Ended	1 Months Ended	12 Months Ended	11 Months Ended	1 Months Ended	11 Months Ended	1 Months Ended	12 Months Ended	11 Months Ended	1 Months Ended	12 Months Ended		11 Months Ended	1 Months Ended	12 Months Ended		11 Months Ended	1 Months Ended	12 Months Ended		11 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Nov. 30, 2010 Predecessor company	Dec. 31, 2010 Other Revenues	Dec. 31, 2012 Other Revenues	Dec. 31, 2011 Other Revenues	Nov. 30, 2010 Other Revenues Predecessor company	Dec. 31, 2010 Interest Expense	Dec. 31, 2011 Interest Expense	Nov. 30, 2010 Interest Expense Predecessor company	Dec. 31, 2010 Interest rate	Dec. 31, 2011 Interest rate	Nov. 30, 2010 Interest rate Predecessor company	Dec. 31, 2010 Interest rate Other Revenues	Nov. 30, 2010 Interest rate Other Revenues Predecessor company	Dec. 31, 2010 Interest rate Interest Expense	Dec. 31, 2011 Interest rate Interest Expense	Nov. 30, 2010 Interest rate Interest Expense Predecessor company	Dec. 31, 2010 Cross currency interest rate	Dec. 31, 2012 Cross currency interest rate	Dec. 31, 2011 Cross currency interest rate	Nov. 30, 2010 Cross currency interest rate Predecessor company	Dec. 31, 2010 Cross currency interest rate Other Revenues	Dec. 31, 2012 Cross currency interest rate Other Revenues	Dec. 31, 2011 Cross currency interest rate Other Revenues	Nov. 30, 2010 Cross currency interest rate Other Revenues Predecessor company	Dec. 31, 2010 Cross currency interest rate Interest Expense	Dec. 31, 2012 Cross currency interest rate Interest Expense	Dec. 31, 2011 Cross currency interest rate Interest Expense	Nov. 30, 2010 Cross currency interest rate Interest Expense Predecessor company
Amount of gain (loss) recognized
AOCI(L)	$ 65,696,000		$ 31,793,000	$ (34,121,000)								$ 8,998,000	$ (3,084,000)	$ 23,518,000						$ 56,698,000	$ (16,987,000)	$ 34,877,000	$ (57,639,000)
From AOCI(L) to Earnings					67,629,000		26,391,000	11,654,000							11,137,000	33,955,000								56,492,000	(12,343,000)	26,391,000	(22,301,000)
From AOCI(L) to Earnings									(3,512,000)	339,000	(53,811,000)						(3,599,000)	(1,624,000)	(38,987,000)				(37,125,000)					87,000	1,839,000	1,963,000	(14,824,000)
From AOCI(L) to Earnings	64,117,000		26,730,000	(42,157,000)								7,538,000	(1,624,000)	(5,032,000)						56,579,000	(10,504,000)	28,354,000
Recognized in Other Revenues	3,559,000		(1,729,000)	(29,226,000)								2,432,000	(2,569,000)	(2,822,000)						1,127,000	(426,000)	840,000	(26,404,000)
Effective portion						(13,050,000)	26,391,000
Ineffective portion		700,000				707,000
Deferred net gain on cash flow hedges to be reclassified from accumulated other comprehensive income to earnings		$ 200,000
Deferred net gain on cash flow hedges to be reclassified from accumulated other comprehensive income to earnings, period		12 months