Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details)

v3.21.2
Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Jun. 30, 2020
Dec. 31, 2019
Accounting Policies [Abstract]        
Cash and cash equivalents $ 329,134 $ 281,046    
Tax like-kind exchange escrow 746 1,978    
Total cash, cash equivalents and restricted cash shown in the statement of cash flows $ 329,880 $ 283,024 $ 258,364 $ 303,645