Commitments and Contingencies - Operating Leases - Additional Information (Detail) - ft² |
1 Months Ended | ||||
---|---|---|---|---|---|
Jan. 01, 2018 |
Aug. 15, 2017 |
May 31, 2017 |
May 31, 2017 |
May 31, 2016 |
|
Operating Lease One [Member] | |||||
Commitments And Contingencies [Line Items] | |||||
Office space rent under operating lease | 22,067 | 19,805 | |||
Lease expire date | Feb. 28, 2022 | Feb. 28, 2022 | |||
Lease existence of option to extend | true | ||||
Commencement date of lease | Sep. 30, 2016 | ||||
Sixth Amendment to Lease [Member] | |||||
Commitments And Contingencies [Line Items] | |||||
Lease expire date | Aug. 15, 2024 | ||||
Increased office space rent | 8,200 | 32,876 | |||
Sixth Amendment to Lease [Member] | Scenario Forecast [Member] | |||||
Commitments And Contingencies [Line Items] | |||||
Increased office space rent | 24,676 |