Derivative Financial Instruments (Details)			12 Months Ended						11 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2012 Cash flow hedges USD ($)	Dec. 31, 2012 Cash flow hedges EUR (€)	Dec. 31, 2012 Cross currency interest rate USD ($)	Dec. 31, 2011 Cross currency interest rate USD ($)	Sep. 30, 2012 Cross currency interest rate EUR (€)	Nov. 30, 2010 Cross currency interest rate USD ($)	Nov. 30, 2010 Cross currency interest rate Predecessor company USD ($)
Fair value of derivative instruments
Remaining notional amount of derivative terminated							€ 183,000,000
Weighted average receive rate (as a percent)					4.13%	3.69%
Weighted average pay rate (as a percent)					0.56%	2.73%
Changes in the notional amounts of cross currency interest rate swap agreements and foreign currency forward agreement
Balance at beginning of period	416,636,000	1,269,500,000			1,269,500,000	2,727,386,000		2,727,386,000	3,499,686,000
Expired contracts						(1,457,886,000)			(772,300,000)
Discontinued and terminated contracts					(852,864,000)
Balance at end of period	416,636,000	1,269,500,000			416,636,000	1,269,500,000		2,727,386,000	2,727,386,000
Decrease in notional amount				676,700,000
Ineffective portion			$ 700,000