Operating Leases - Narrative (Details) ft² in Millions	Dec. 31, 2021 ft²
gross leasable area percent leased	95.00%
office space leasable square feet	1.1
Minimum [Member]
Lessee, Operating Lease, Renewal Term	5 years
Maximum [Member]
Lessee, Operating Lease, Renewal Term	10 years
Office Equipment | Minimum [Member]
Lessee, Operating Lease, Term of Contract	3 years
Office Equipment | Maximum [Member]
Lessee, Operating Lease, Term of Contract	5 years
Other Property [Member]
gross leasable area percent leased	44.00%