Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Subsequent Event [Line Items] | ||||||||||||
| Current federal tax provision (benefit) | $ 492 | $ (1,616) | $ (4,097) | |||||||||
| Current state tax provision (benefit) | 57 | 164 | 175 | |||||||||
| Total current tax provision (benefit) | 549 | (1,452) | (3,922) | |||||||||
| Deferred tax (benefit) provision | (11,031) | 13,766 | (12,638) | |||||||||
| (Benefit from) provision for income taxes | $ 10,618 | $ (5,342) | $ 8,759 | $ (24,517) | $ 38,443 | $ (16,825) | $ (14,761) | $ 5,458 | $ (10,482) | $ 12,314 | $ (16,560) | |
| Federal income tax rate applicable to corporations | 35.00% | 35.00% | 35.00% | |||||||||
| Subsequent Event [Member] | ||||||||||||
| Subsequent Event [Line Items] | ||||||||||||
| Federal income tax rate applicable to corporations | 21.00% | |||||||||||
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- Definition Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. No definition available.
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- Details
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