XML 19 R46.htm IDEA: XBRL DOCUMENT v3.20.1
Commitments and Contingencies - Additional Information (Detail)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
lease
Mar. 31, 2019
USD ($)
Other Commitments [Line Items]    
Number of leases | lease 4  
Rental expense $ 29,479 $ 27,162
Property operating expense    
Other Commitments [Line Items]    
Rental expense 100 $ 100
Line of credit    
Other Commitments [Line Items]    
Letters of credit, outstanding $ 12,600