Leases (Maturities of Operating Lease Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Leases [Abstract]
2020 (remainder of year)	$ 9,263
2021	19,956
2022	16,841
2023	11,714
2024	7,833
Thereafter	35,739
Total lease payments	101,346
Less imputed interest	(16,276)
Total	85,070
Current operating lease liabilities, included in accrued liabilities	16,473	$ 15,281
Long-term operating lease liabilities	$ 68,597	$ 67,472
Weighted average remaining lease term - operating leases	9 years 10 months 24 days
Weighted average discount rate - operating leases	3.50%