Related Party Transactions (Details) - Successor [Member] - USD ($)	3 Months Ended	12 Months Ended			16 Months Ended
	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2013
Related Party Transaction [Line Items]
Management fee expense		$ 0	$ 3,200,000	$ 3,100,000
Carlyle Investment Management Llc [Member]
Related Party Transaction [Line Items]
Fees and commissions			3,000,000
Management fee expense		$ 0	3,200,000	3,100,000
Pre tax charge related to management agreement	$ 13,400,000		13,400,000
Carlyle Investment Management Llc [Member] | Acquisition-related Costs [Member]
Related Party Transaction [Line Items]
Fees and commissions				21,000,000
Carlyle Investment Management Llc [Member] | One Time Fees [Member]
Related Party Transaction [Line Items]
Fees and commissions				35,000,000
Carlyle Investment Management Llc [Member] | Deferred Financing Costs [Member]
Related Party Transaction [Line Items]
Fees and commissions				14,000,000
Service King Collision Repair [Member]
Related Party Transaction [Line Items]
Related parties sales			$ 4,000,000	2,000,000
Other Related Party [Member]
Related Party Transaction [Line Items]
Fees and commissions				$ 100,000	$ 2,100,000
Stock issued during period, shares, acquisitions				352,143
Stock issued during period, value, acquisitions				$ 500,000