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Income Tax - Reconciliation of Income Tax Benefit (Provision) (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Income Tax Disclosure [Abstract] | |||
| Expected tax benefit (expense) | $ (39,966) | $ (21,459) | $ (8,111) |
| State income tax expense, net of federal benefit | (1,907) | (308) | (108) |
| Pass-through entities | 42,000 | 21,459 | 8,111 |
| Other | 1,294 | ||
| Total income tax benefit (expense) | $ 1,421 | $ (308) | $ (108) |