Schedule - II Valuation And Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended			10 Months Ended	12 Months Ended			10 Months Ended
	Dec. 31, 2012 Allowance for doubtful accounts receivable	Dec. 31, 2011 Allowance for doubtful accounts receivable	Dec. 31, 2010 Allowance for doubtful accounts receivable	Nov. 15, 2010 Allowance for doubtful accounts receivable Predecessor	Dec. 31, 2012 Allowance for deferred tax assets	Dec. 31, 2011 Allowance for deferred tax assets	Dec. 31, 2010 Allowance for deferred tax assets	Nov. 15, 2010 Allowance for deferred tax assets Predecessor
Valuation and Qualifying Accounts
Balance at Beginning of Period	$ 6,413	$ 844		$ 22,627	$ 5,323	$ 7,861	$ 6,810	$ 5,388
Additions Charged to Costs and Expenses	5,679	5,851	844	9,573	193	478	1,051	1,586
Deductions, Write-offs	(95)	(282)		(4,950)	(463)	(91)
Deductions, Reclassifications					(1,394)	(2,925)		(164)
Balance at End of Period	$ 11,997	$ 6,413	$ 844	$ 27,250	$ 3,659	$ 5,323	$ 7,861	$ 6,810