XML 65 R55.htm IDEA: XBRL DOCUMENT v3.21.1
Commitments and Contingencies - Noncash Investing and Financing Activities (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]    
Right-of-use assets obtained in exchange for operating lease liabilities $ 0 $ 12,178
Right-of-use assets obtained in exchange for finance lease liabilities $ 0 $ 18