Nature of operations and summary of significant accounting policies (Cash and Accounts Receivable) (Detail) - USD ($)
$ in Thousands |
12 Months Ended |
|
|
|
Dec. 31, 2016 |
Mar. 31, 2017 |
Mar. 21, 2017 |
Dec. 31, 2015 |
| Cash and accounts receivable |
|
|
|
|
| Restricted cash |
|
$ 14,200
|
|
|
| Components of accounts receivable |
|
|
|
|
| Joint interests |
|
13,304
|
|
|
| Accrued commodity sales |
|
32,460
|
|
|
| Derivative settlements |
|
3,231
|
|
|
| Other |
|
2,016
|
|
|
| Allowance for doubtful accounts |
|
(593)
|
|
|
| Accounts receivable, net |
|
50,418
|
$ 46,837
|
|
| JP Morgan Chase Bank, N.A. |
|
|
|
|
| Cash and accounts receivable |
|
|
|
|
| Cash held |
|
$ 27,600
|
|
|
| Predecessor |
|
|
|
|
| Cash and accounts receivable |
|
|
|
|
| Restricted cash |
$ 1,400
|
|
|
|
| Components of accounts receivable |
|
|
|
|
| Joint interests |
13,818
|
|
|
$ 14,149
|
| Accrued commodity sales |
31,304
|
|
|
21,645
|
| Derivative settlements |
119,303
|
|
|
40,380
|
| Other |
1,657
|
|
|
3,329
|
| Allowance for doubtful accounts |
(553)
|
|
|
(503)
|
| Accounts receivable, net |
$ 46,226
|
|
$ 46,837
|
$ 79,000
|
| Period within which joint interest accounts receivable are due |
30 days
|
|
|
|
| Period within which joint interest accounts receivable are past due |
60 days
|
|
|
|
| Predecessor | JP Morgan Chase Bank, N.A. |
|
|
|
|
| Cash and accounts receivable |
|
|
|
|
| Cash held |
$ 36,502
|
|
|
|
| Cash | Predecessor | Arvest Bank |
|
|
|
|
| Cash and accounts receivable |
|
|
|
|
| Cash held |
48,023
|
|
|
|
| Cash Equivalents | Predecessor | Arvest Bank |
|
|
|
|
| Cash and accounts receivable |
|
|
|
|
| Cash held |
$ 101,127
|
|
|
|