Leases (Maturities of Operating Lease Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
2020	$ 18,016
2021	17,424
2022	13,968
2023	9,358
2024	6,657
Thereafter	33,602
Total lease payments	99,025
Less imputed interest	(16,272)
Total	82,753
Current operating lease liabilities, included in accrued liabilities	15,281
Long-term operating lease liabilities	$ 67,472	$ 68,939	$ 0
Weighted average remaining lease term - operating leases	10 years 3 months 18 days
Weighted average discount rate - operating leases	3.50%