Accounts Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts receivable [Line Items]
Accounts Receivable, after Allowance for Credit Loss, Current	$ 368,611	$ 244,251
Accounts Receivable, Allowance for Credit Loss, Current	(6,772)	(6,763)
joint interest billing
Accounts receivable [Line Items]
Accounts Receivable, before Allowance for Credit Loss	21,257	35,396
Revenue, Segment Benchmark
Accounts receivable [Line Items]
Accounts Receivable, before Allowance for Credit Loss	343,022	178,147
Other Accounts Receivable
Accounts receivable [Line Items]
Accounts Receivable, before Allowance for Credit Loss	$ 11,104	$ 37,471