Goodwill (Details) (USD $)					12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Dec. 31, 2012 Successor [Member]	Dec. 31, 2011 Successor [Member]	Dec. 31, 2010 Successor [Member]	Oct. 02, 2010 Successor [Member]
Goodwill [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid	$ 9,600,000			$ 3,500,000,000
Goodwill	1,108,278,000	1,107,982,000	1,100,000,000		1,108,278,000	1,107,982,000	1,094,923,000	1,094,923,000
Goodwill, Acquired During Period						13,773,000
Goodwill, Translation Adjustments					$ 296,000	$ (714,000)