Recent Accounting Standards (Details) - USD ($) $ in Thousands			9 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	May 31, 2020	May 31, 2019	Sep. 01, 2019
Recently Adopted Accounting Pronouncements
Package of practical expedients			true
Operating lease liability			$ 8,122
Operating lease liability, short-term			1,965
Operating Lease, Liability, Noncurrent			6,157
Operating Lease, Right-of-Use Asset			$ 8,658
Statutory tax rate (as a percent)	21.00%	35.00%	21.00%	21.00%
ASU 2016-02
Recently Adopted Accounting Pronouncements
Operating lease liability					$ 9,644
Operating lease liability, short-term					2,071
Operating Lease, Liability, Noncurrent					7,573
Operating Lease, Right-of-Use Asset					$ 10,200