Leases (Narrative) (Details) $ in Thousands		12 Months Ended
	Sep. 01, 2020 USD ($) location	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Feb. 25, 2021 USD ($) ft²
Lessee, Lease, Description [Line Items]
Renewal term		1 year
Ground lease sold					$ 389
Number of facilities closed | location	2
Impairment of goodwill and assets		$ 1,676	$ 55,484	$ 1,728
Operating Leases		42,502	$ 40,586
Lease liabilities		4,694
Lease not yet commenced, lease payments					$ 16,875
Colorado
Lessee, Lease, Description [Line Items]
Rentable area | ft²					50,000
Lease not yet commenced, lease payments					$ 14,233
Lease not yet commenced, lease terms					10 years
Fourth Quarter 2019
Lessee, Lease, Description [Line Items]
Operating Leases		1,469
Lease liabilities		1,469
Second Quarter 2020
Lessee, Lease, Description [Line Items]
Operating Leases		2,021
Lease liabilities		2,021
Third Quarter 2020
Lessee, Lease, Description [Line Items]
Operating Leases		3,467
Lease liabilities		$ 3,467
Lessee, Right Of Use Asset
Lessee, Lease, Description [Line Items]
Impairment of goodwill and assets	$ 1,627
Leasehold improvements
Lessee, Lease, Description [Line Items]
Impairment of goodwill and assets	$ 1,953
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term		1 year
Rentable area | ft²					80,000
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term		16 years
Rentable area | ft²					100,000