Leases - Cost and Other information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Lease, Cost [Abstract]
Operating Lease, Cost	$ 705	$ 905	$ 2,124	$ 2,671
Sublease Income	(63)	(95)	(189)	(289)
Lease, Cost	642	810	1,935	2,382
Operating Lease, Payments	777	906	2,329	2,710
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	367	25	547	7,794
reductions to right of use assets resulting from reduction in lease obligations	$ (695)	$ (789)	$ (2,074)	$ (2,347)