Annual report pursuant to Section 13 and 15(d)

Leases Leases Assets and Lease Liabilities (Details)

v3.20.4
Leases Leases Assets and Lease Liabilities (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating lease assets $ 83,000,000.0 $ 83,200,000
Current Operating Lease Liabilities 19,200,000 18,400,000
Non-Current Operating Lease Liabilities 69,800,000 70,100,000
Total Lease Liabilities 89,000,000.0 88,500,000
Lessee, Lease, Description [Line Items]    
Current Operating Lease Liabilities 19,200,000 18,400,000
Other Current Liabilities [Member]    
Leases [Abstract]    
Current Operating Lease Liabilities 19,200,000 18,400,000
Lessee, Lease, Description [Line Items]    
Current Operating Lease Liabilities $ 19,200,000 $ 18,400,000