Subsidiary Guarantors - Condensed Consolidating Statement of Cash Flows (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Cash flows from operating activities |
|
|
|
| Net income (loss) |
$ (84,805)
|
$ (9,077)
|
$ 225,620
|
| Adjustments to reconcile net income (loss) to net cash provided by operating activities |
110,505
|
77,926
|
39,699
|
| Net cash provided by operations |
25,700
|
68,849
|
265,319
|
| Cash flows from investing activities |
|
|
|
| Additions to oil and gas properties |
(264,462)
|
(311,305)
|
(474,619)
|
| Net adjustments to purchase price of properties acquired |
|
|
15,709
|
| Proceeds from sales of assets |
1,645
|
41
|
448
|
| Acquisition of other property, plant and equipment |
(310)
|
(1,101)
|
(1,683)
|
| Current period settlements of matured derivative contracts |
132,265
|
144,145
|
(3,654)
|
| Net cash (used in) investing |
(130,862)
|
(168,220)
|
(463,799)
|
| Cash flows from financing activities |
|
|
|
| Proceeds from issuance of long-term debt |
130,000
|
85,000
|
170,000
|
| Repayment under long-term debt |
(62,000)
|
(335,000)
|
(468,000)
|
| Proceeds from senior notes |
|
236,475
|
500,000
|
| Purchase of senior notes |
(84,589)
|
|
|
| Purchase of treasury stock |
|
|
(358)
|
| Payment of debt issuance costs |
|
(1,556)
|
(13,416)
|
| Payment of dividends on preferred stock |
(1,615)
|
|
|
| Net distributions paid to JEH unitholders |
(17,319)
|
|
|
| Proceeds from sale of common stock, net of expense |
65,446
|
122,779
|
|
| Proceeds from sale of preferred stock |
87,988
|
|
|
| Net cash provided by financing |
117,911
|
107,698
|
188,226
|
| Net increase (decrease) in cash |
12,749
|
8,327
|
(10,254)
|
| Cash |
|
|
|
| Beginning of period |
21,893
|
13,566
|
23,820
|
| End of period |
34,642
|
21,893
|
13,566
|
| Eliminations |
|
|
|
| Cash flows from operating activities |
|
|
|
| Net income (loss) |
66,804
|
4,728
|
(63,197)
|
| Adjustments to reconcile net income (loss) to net cash provided by operating activities |
(66,804)
|
(4,728)
|
63,197
|
| JEI (Parent) |
|
|
|
| Cash flows from operating activities |
|
|
|
| Net income (loss) |
(42,552)
|
(2,381)
|
41,136
|
| Adjustments to reconcile net income (loss) to net cash provided by operating activities |
(105,877)
|
(120,398)
|
(40,778)
|
| Net cash provided by operations |
(148,429)
|
(122,779)
|
358
|
| Cash flows from financing activities |
|
|
|
| Purchase of treasury stock |
|
|
(358)
|
| Payment of dividends on preferred stock |
(1,615)
|
|
|
| Net distributions paid to JEH unitholders |
23,674
|
|
|
| Proceeds from sale of common stock, net of expense |
65,446
|
122,779
|
|
| Proceeds from sale of preferred stock |
87,988
|
|
|
| Net cash provided by financing |
175,493
|
122,779
|
(358)
|
| Net increase (decrease) in cash |
27,064
|
|
|
| Cash |
|
|
|
| Beginning of period |
100
|
100
|
100
|
| End of period |
27,164
|
100
|
100
|
| Issuers |
|
|
|
| Cash flows from operating activities |
|
|
|
| Net income (loss) |
(14,461)
|
84,743
|
136,929
|
| Adjustments to reconcile net income (loss) to net cash provided by operating activities |
(70,695)
|
(202,359)
|
(326,859)
|
| Net cash provided by operations |
(85,156)
|
(117,616)
|
(189,930)
|
| Cash flows from investing activities |
|
|
|
| Current period settlements of matured derivative contracts |
132,265
|
144,145
|
(3,654)
|
| Net cash (used in) investing |
132,265
|
144,145
|
(3,654)
|
| Cash flows from financing activities |
|
|
|
| Proceeds from issuance of long-term debt |
130,000
|
85,000
|
170,000
|
| Repayment under long-term debt |
(62,000)
|
(335,000)
|
(468,000)
|
| Proceeds from senior notes |
|
236,475
|
500,000
|
| Purchase of senior notes |
(84,589)
|
|
|
| Payment of debt issuance costs |
|
(1,556)
|
(13,416)
|
| Net distributions paid to JEH unitholders |
(40,993)
|
|
|
| Net cash provided by financing |
(57,582)
|
(15,081)
|
188,584
|
| Net increase (decrease) in cash |
(10,473)
|
11,448
|
(5,000)
|
| Cash |
|
|
|
| Beginning of period |
12,448
|
1,000
|
6,000
|
| End of period |
1,975
|
12,448
|
1,000
|
| Guarantor Subsidiaries |
|
|
|
| Cash flows from operating activities |
|
|
|
| Net income (loss) |
(94,138)
|
(95,960)
|
110,932
|
| Adjustments to reconcile net income (loss) to net cash provided by operating activities |
196,547
|
405,214
|
343,999
|
| Net cash provided by operations |
102,409
|
309,254
|
454,931
|
| Cash flows from investing activities |
|
|
|
| Additions to oil and gas properties |
(107,586)
|
(311,305)
|
(474,619)
|
| Net adjustments to purchase price of properties acquired |
|
|
15,709
|
| Proceeds from sales of assets |
1,645
|
41
|
448
|
| Acquisition of other property, plant and equipment |
(310)
|
(1,101)
|
(1,683)
|
| Net cash (used in) investing |
(106,251)
|
(312,365)
|
(460,145)
|
| Cash flows from financing activities |
|
|
|
| Net increase (decrease) in cash |
(3,842)
|
(3,111)
|
(5,214)
|
| Cash |
|
|
|
| Beginning of period |
9,325
|
12,436
|
17,650
|
| End of period |
5,483
|
9,325
|
12,436
|
| Non-Guarantor Subsidiaries |
|
|
|
| Cash flows from operating activities |
|
|
|
| Net income (loss) |
(458)
|
(207)
|
(180)
|
| Adjustments to reconcile net income (loss) to net cash provided by operating activities |
157,334
|
197
|
140
|
| Net cash provided by operations |
156,876
|
(10)
|
(40)
|
| Cash flows from investing activities |
|
|
|
| Additions to oil and gas properties |
(156,876)
|
|
|
| Net cash (used in) investing |
(156,876)
|
|
|
| Cash flows from financing activities |
|
|
|
| Net increase (decrease) in cash |
|
(10)
|
(40)
|
| Cash |
|
|
|
| Beginning of period |
20
|
30
|
70
|
| End of period |
$ 20
|
$ 20
|
$ 30
|