Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v3.20.1
Subsequent Events - Additional Information (Detail) - Letter of Credit [Member] - USD ($)
$ in Thousands
12 Months Ended
May 01, 2020
Mar. 31, 2019
Oct. 08, 2019
HSBC Bank USA [Member]      
Subsequent Event [Line Items]      
Line of credit   $ 5,000 $ 10,000
HSBC Bank USA [Member] | Subsequent Event [Member]      
Subsequent Event [Line Items]      
Line of credit $ 14,000    
Revolving Credit Facility [Member] | Subsequent Event [Member]      
Subsequent Event [Line Items]      
Annual facility fee $ 5    
Debt instrument, basis spread on variable rate 3.00%    
Revolving Credit Facility [Member] | Minimum [Member] | Subsequent Event [Member]      
Subsequent Event [Line Items]      
Fee for outstanding letters of credit 0.75%    
Revolving Credit Facility [Member] | Maximum [Member] | Subsequent Event [Member]      
Subsequent Event [Line Items]      
Fee for outstanding letters of credit 0.85%    
Revolving Credit Facility [Member] | HSBC Bank USA [Member]      
Subsequent Event [Line Items]      
Annual facility fee   $ 5  
Debt instrument, basis spread on variable rate   3.00%  
Revolving Credit Facility [Member] | HSBC Bank USA [Member] | Minimum [Member]      
Subsequent Event [Line Items]      
Fee for outstanding letters of credit   0.65%  
Revolving Credit Facility [Member] | HSBC Bank USA [Member] | Maximum [Member]      
Subsequent Event [Line Items]      
Fee for outstanding letters of credit   0.75%