Leases (Future Minimum Lease Payments) (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Leases [Abstract]
2019	$ 2,412
2020	2,456
2021	2,207
2022	2,203
2023	2,172
Thereafter	7,504
Total minimum lease payments	18,954
Less imputed interest	(3,601)
Total operating lease liability	15,353
As reflected on balance sheet:
Accrued expenses and other current liabilities	2,353
Other noncurrent liabilities	13,000
Total operating lease liability	$ 15,353