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Income Taxes - Loss from Continuing Operations Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |  |  |  |  |
Benefit for income taxes at federal statutory rate |  |  |  |  |  |  |  |  | $ (17,712) | $ (14,802) | $ (24,868)
State current and deferred income tax benefit |  |  |  |  |  |  |  |  | (5,282) | (4,089) | (2,699)
State tax law changes |  |  |  |  |  |  |  |  | (4,388) |  |
Tax reform |  |  |  |  |  |  |  |  |  |  | (22,988)
Other |  |  |  |  |  |  |  |  | 758 | 1,915 | 2,145
Provision (benefit) for income taxes | $ (15,108) | $ (483) | $ (5,733) | $ 400 | $ 764 | $ (2,426) | $ 4,324 | $ (922) | (20,924) | 1,740 | (40,759)
Federal [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |  |  |  |  |
Valuation allowance |  |  |  |  |  |  |  |  | 2,739 | 14,604 |
State [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |  |  |  |  |
Valuation allowance |  |  |  |  |  |  |  |  | $ 2,961 | $ 4,112 | $ 7,651

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