Leases (Maturities of Operating Lease Liabilities - Topic 842) (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
2019 (remaining six months)	$ 5,773
2020	10,184
2021	8,009
2022	7,003
2023	4,524
Thereafter	7,731
Total lease payments	43,224
Less imputed interest	(3,719)
Total	$ 39,505