Stockholders' Equity - Summary of Noncontrolling Interest Balances (Detail) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
| Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |
|
|
|
|
| Beginning balance |
|
|
$ 1,253,693
|
$ 891,246
|
| Acquisitions |
|
|
11,113
|
|
| Contributions from noncontrolling interests |
|
|
|
325,600
|
| Distributions to noncontrolling interests |
|
|
(21,274)
|
(9,164)
|
| Other |
|
|
|
(127)
|
| Net loss |
$ (34,492)
|
$ (28,904)
|
(183,034)
|
(32,018)
|
| Other comprehensive loss, net of tax |
|
|
(1,752)
|
(107)
|
| Ending balance |
1,058,746
|
1,175,430
|
1,058,746
|
1,175,430
|
| Tax reform, change in tax rate |
150,000
|
|
|
|
| Capital [Member] |
|
|
|
|
| Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |
|
|
|
|
| Beginning balance |
|
|
1,380,340
|
954,242
|
| Acquisitions |
|
|
11,113
|
|
| Contributions from noncontrolling interests |
|
|
|
325,600
|
| Distributions to noncontrolling interests |
|
|
(21,274)
|
(9,164)
|
| Other |
|
|
|
(127)
|
| Net loss |
|
|
0
|
0
|
| Other comprehensive loss, net of tax |
|
|
0
|
0
|
| Ending balance |
1,370,179
|
1,270,551
|
1,370,179
|
1,270,551
|
| Accumulated Income (Loss) [Member] |
|
|
|
|
| Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |
|
|
|
|
| Beginning balance |
|
|
(127,119)
|
(62,614)
|
| Acquisitions |
|
|
0
|
|
| Contributions from noncontrolling interests |
|
|
|
0
|
| Distributions to noncontrolling interests |
|
|
0
|
0
|
| Other |
|
|
|
0
|
| Net loss |
|
|
(183,034)
|
(32,018)
|
| Other comprehensive loss, net of tax |
|
|
0
|
0
|
| Ending balance |
(310,153)
|
(94,632)
|
(310,153)
|
(94,632)
|
| Accumulated Other Comprehensive Income [Member] |
|
|
|
|
| Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |
|
|
|
|
| Beginning balance |
|
|
472
|
(382)
|
| Acquisitions |
|
|
0
|
|
| Contributions from noncontrolling interests |
|
|
|
0
|
| Distributions to noncontrolling interests |
|
|
0
|
0
|
| Other |
|
|
|
0
|
| Net loss |
|
|
0
|
0
|
| Other comprehensive loss, net of tax |
|
|
(1,752)
|
(107)
|
| Ending balance |
$ (1,280)
|
$ (489)
|
$ (1,280)
|
$ (489)
|