Leases (Schedule of Other Supplemental Information) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 35,496
Operating cash flows from finance leases	161
Financing cash flows from finance leases	883
Right-of-use assets obtained in exchange for new lease liabilities:
Right-of-use assets obtained in exchange for new lease liabilities, operating leases	21,716
Right-of-use assets obtained in exchange for new lease liabilities, financing leases	$ 304
Weighted-average remaining lease term (in years):
Weighted-average remaining lease term, operating leases	4 years 7 months 6 days
Weighted-average remaining lease term, finance leases	16 years 2 months 12 days
Weighted-average discount rate:
Weighted-average discount rate, operating leases	3.19%
Weighted-average discount rate, finance leases	2.84%