Leases (Schedule of Supplemental Cash Flow Information Related to Leases) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Lessee Disclosure [Abstract]
Operating cash flows from operating leases	$ 1,191
Operating cash flows from finance leases	399
Financing cash flows from finance leases	400
Right-of-use assets obtained in exchange for operating lease obligations	412
Right-of-use assets obtained in exchange for finance lease obligations