Leases (Component of Lease and Other Information) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 17,713
Operating lease liabilities	$ 17,972
Weighted-average remaining lease term - operating leases	10 years 9 months 18 days
Weighted-average discount rate - operating leases	5.88%