Schedule II - Valuation And Qualifying Accounts (Details) - Allowance for Bad Debt - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Successor
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 2,670
Charged to Costs and Expenses	1,099
Charged to Other Accounts	(1,858)
Deductions	(1,911)
Balance at End of Period	0	$ 2,670
Predecessor
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 2,670	2,032	$ 3,675
Charged to Costs and Expenses		2,850	1,244
Charged to Other Accounts		0	0
Deductions		(2,212)	(2,887)
Balance at End of Period		$ 2,670	$ 2,032