Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Activity (Details)

v3.21.2
Summary of Significant Accounting Policies - Activity (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Accounting Policies [Abstract]    
Finance Lease, Right-of-Use Asset, after Accumulated Amortization $ 84,267 $ 60,121
Operating Lease, Right-of-Use Asset $ 313,425 $ 330,322