Quarterly report pursuant to Section 13 or 15(d)

Leases - Additional Information (Detail)

v3.22.2
Leases - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Lessee, Lease, Description [Line Items]          
Right-of-use assets $ 43,800   $ 43,800   $ 46,300
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Prepaid expenses and other assets   Prepaid expenses and other assets   Prepaid expenses and other assets
Total lease liabilities - Operating leases $ 47,390   $ 47,390   $ 49,700
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent   us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent   us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Weighted average remaining lease term 7 years 5 months 1 day   7 years 5 months 1 day   7 years 10 months 6 days
Weighted average discount rate (percent) 2.38%   2.38%    
Net lease expense $ 2,000 $ 2,000 $ 4,100 $ 4,100  
Operating lease costs 2,000 1,900 4,000 3,900  
Cash paid for amounts included in the measurement of Company's operating lease liabilities $ 2,000 $ 1,900 $ 4,000 $ 3,900  
Minimum          
Lessee, Lease, Description [Line Items]          
Operating lease remaining term 1 year   1 year    
Finance lease remaining term 1 year   1 year    
Maximum [Member]          
Lessee, Lease, Description [Line Items]          
Operating lease remaining term 13 years   13 years    
Finance lease remaining term 13 years   13 years    
Operating lease extension term 5 years   5 years    
Finance lease extension term 5 years   5 years