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Leases (Narrative) (Details)
$ in Millions
Dec. 31, 2021
USD ($)
ft²
Nov. 15, 2021
ft²
renewalTerm
$ / ft²
Lessee, Lease, Description [Line Items]    
Rent increase   2.50%
Weighted-average remaining lease term 1 year  
Weighted-average incremental borrowing rate 7.42%  
Future minimum sublease income under noncancelable operating subleases | $ $ 0.1  
Building    
Lessee, Lease, Description [Line Items]    
Leased area 25,500  
Office Building    
Lessee, Lease, Description [Line Items]    
Leased area 14,200 16,631
Term of contract   157 months
Lessee, Operating Lease, Base Rent | $ / ft²   33.06
Office Building | Broadwest Lease, Five Year Renewal Option    
Lessee, Lease, Description [Line Items]    
Renewal term   5 years
Number of renewal terms | renewalTerm   2