XML 21 R29.htm IDEA: XBRL DOCUMENT v3.19.2
Fair Value Measurements - Additional Information (Detail) - USD ($)
Aug. 03, 2019
Feb. 02, 2019
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Non-financial assets recognized at fair value $ 0 $ 0
Non-financial liabilities recognized at fair value 0 0
Total long-term debt principal 52,087,000 $ 46,516,000
2018 Term Loan Facility [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Total long-term debt principal 26,125,000  
2018 Term Loan Facility [Member] | Level 3 [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Fair value of term loan facility $ 26,000,000