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Income Taxes - Changes in Deferred Tax Asset Valuation Allowances (Detail) - Valuation Allowance of Deferred Tax Assets - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Taxes [Line Items] |  |  |
Balance at the beginning of the year | $ (120,347) | $ (125,134) | $ (107,174)
Charged to provision for income taxes: |  |  |
Non-recoverable deferred tax assets | (28,208) | 0 | 0
Other state valuation allowances | (31,214) | 16,380 | (23,790)
Other federal valuation allowances | 346 | 494 | (247)
Other | 527 | 123 | 2,304
Balance at the end of the year | (190,826) | (120,347) | (125,134)
State |  |  |
Charged to provision for income taxes: |  |  |
Net operating loss carryforwards | (25,710) | (23,926) | (11,612)
Federal |  |  |
Charged to provision for income taxes: |  |  |
Net operating loss carryforwards | $ 13,780 | $ 11,716 | $ 15,385

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