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Leases (Operating Lease) (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2019
USD ($)
Lease cost for operating leases    
Operating lease cost $ 9,696 $ 28,886
Operating cash flow information: Cash paid for amounts included in the measurement of lease liabilities   28,374
Non-cash activity: Right-of-use assets obtained in exchange for lease liabilities   $ 7,363
Weighted average remaining lease term 8 years 10 months 24 days 8 years 10 months 24 days
Weighted average discount rate 3.99% 3.99%