Debt (Details) - USD ($)		5 Months Ended
	Jul. 31, 2015	Dec. 31, 2015
Credit facility
Less: Amounts due within one year		$ 4,250,000
Total long-term debt due after one year		406,286,000
Outstanding loan balance		422,875,000
Accretion of debt issuance costs		781,000
Credit Facility
Credit facility
Cap on dividends paid and shares and warrants that can be repurchased per fiscal year under restrictive covenants		12,000,000
Aggregate purchase price of outstanding warrants that can be redeemed or repurchased		10,000,000
Credit Facility | Alternate base rate
Credit facility
Margin of interest (as a percent)	3.75%
Credit Facility | LIBOR
Credit facility
Margin of interest (as a percent)	4.75%
Variable rate base minimum (as a percent)	1.00%
Term Loan
Credit facility
Total Term Loan outstanding		410,536,000
Less: Amounts due within one year		4,250,000
Total long-term debt due after one year		406,286,000
Debt issuance costs incurred	$ 12,900,000
Deferred issuance costs, net		12,300,000
Face amount	$ 425,000,000
Amortization per year (as a percent)	1.00%
Revolving loan
Credit facility
Debt issuance costs incurred	$ 1,300,000
Outstanding loan balance		0
Maximum borrowing available	25,000,000
Letter-of-credit sub-facility
Credit facility
Maximum borrowing available	$ 10,000,000
Letters of credit outstanding		1,500,000
Credit facility amount outstanding		$ 0