XML 72 R62.htm IDEA: XBRL DOCUMENT v3.19.1
Leases - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Lessee, Lease, Description [Line Items]    
Operating lease right-of-use assets $ 43,500  
Operating lease liabilities 47,414  
Operating lease right-of-use assets obtained in exchange for lease liabilities $ 1,000  
Operating lease, rent expense, net   $ 1,400
Minimum    
Lessee, Lease, Description [Line Items]    
Term of lease 18 months  
Renewal term 5 years  
Maximum    
Lessee, Lease, Description [Line Items]    
Term of lease 36 years  
Renewal term 10 years