Basis of Presentation, Business and Summary of Significant Accounting Policies - Initial Public Offering (Details) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended
	Jun. 01, 2016	Jan. 31, 2017
Initial Public Offering
Net proceeds from initial public offering	$ 156,900	$ 156,941
Second Lien Term Loan due 2022
Initial Public Offering
Loan repayment	$ 160,000	$ 160,000
Common Stock
Initial Public Offering
Number of shares issued		8,050,000
Initial public offering | Common Stock
Initial Public Offering
Number of shares issued	8,050,000
Offering price (in dollars per share)	$ 21.00
Underwriters over-allotment option | Common Stock
Initial Public Offering
Number of shares issued	1,050,000