Quarterly report pursuant to Section 13 or 15(d)

Supplemental Cash Flow (Details)

v3.21.2
Supplemental Cash Flow (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Supplemental cash flow information:    
Interest paid, net of capitalized amounts $ 44,734 $ 31,649
Income taxes paid 0 0
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases 14,576 26,110
Investing cash flows from operating leases 8,402 11,278
Non-cash investing and financing activities:    
Change in accrued capital expenditures 47,247 (6,186)
Change in asset retirement costs 2,567 207
ROU assets obtained in exchange for lease liabilities:    
Operating leases $ 9,710 $ 2,666