Leases (Summary of Maturity of Lease Liabilities) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Operating Leases
2020	$ 39,446
2021	32,681
2022	34,330
2023	34,915
2024	34,391
Thereafter	92,963
Total lease payments	268,726
Less: Interest	44,990
Present value of lease liabilities	223,736
Finance Leases
2020	5,863
2021	4,389
2022	4,416
2023	4,442
2024	4,469
Thereafter	5,197
Total lease payments	28,776
Less: Interest	7,506
Present value of lease liabilities	21,270
Total
2020	45,309
2021	37,070
2022	38,746
2023	39,357
2024	38,860
Thereafter	98,160
Total lease payments	297,502
Less: Interest	52,496
Total lease liabilities	$ 245,006