Summary of Significant Accounting Policies - Estimated Amortization Expense of Deferred Financing Costs (Details) $ in Thousands	Feb. 02, 2019 USD ($)
2019
Estimated amortization expense of deferred financing
Amortization expense deferred financing costs	$ 713
2020
Estimated amortization expense of deferred financing
Amortization expense deferred financing costs	619
2021
Estimated amortization expense of deferred financing
Amortization expense deferred financing costs	619
2022
Estimated amortization expense of deferred financing
Amortization expense deferred financing costs	$ 619