Leases (Supplemental Cash Flows Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 2,517	$ 2,171
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 2,675	$ 1,439