Quarterly report pursuant to Section 13 or 15(d)

Leases - Narrative (Details)

v3.19.3
Leases - Narrative (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
lease
Jun. 30, 2019
USD ($)
lease
Jan. 01, 2019
USD ($)
Lessee, Lease, Description [Line Items]      
Number of leases | lease 45 45  
Right-of-use assets $ 39,978 $ 39,978  
Total lease liabilities - Operating leases $ 40,378 $ 40,378  
Weighted average remaining lease term 8 years 8 months 19 days 8 years 8 months 19 days  
Weighted average discount rate (percent) 3.23% 3.23%  
Net lease expense $ 1,900 $ 3,800  
Cash paid for amounts included in the measurement of Company's operating lease liabilities $ 1,700 $ 3,400  
Minimum      
Lessee, Lease, Description [Line Items]      
Initial lease terms 2 years 2 years  
Lease renewal term 2 years 2 years  
Maximum      
Lessee, Lease, Description [Line Items]      
Initial lease terms 25 years 25 years  
Lease renewal term 12 years 12 years  
ASU 2016-02      
Lessee, Lease, Description [Line Items]      
Right-of-use assets $ 40,000 $ 40,000 $ 40,900
Total lease liabilities - Operating leases $ 40,400 $ 40,400 $ 40,900