Leases (Supplemental Cash Flow Information) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 6,613
Operating cash flows from finance leases	127
Financing cash flows from finance leases	735
Right-of-use assets obtained in exchange for new operating lease liabilities	15,162
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 0