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Income Taxes - Reconciliation of Unrecognized Tax Benefits - (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Tax |  |  |
Balance | $ 130,619 | $ 127,085 |
Additions for current year tax positions | 819 | 1,478 |
Additions for Reorganization Transactions | 121,400 |  |
Reductions for prior years' tax positions: Expiration of statute of limitations | (140) | (254) |
Reductions for prior years' tax positions: Other | (515) |  |
Balance | 130,783 | 128,309 |
Interest and Penalties |  |  |
Balance | 10,660 | 9,965 |
Additions for Reorganization Transactions | 7,000 | 226 |
Additions for prior years' tax positions: Accrual of interest and penalties | 509 | 209 |
Reductions for prior years' tax positions: Expiration of statute of limitations | (63) | (101) |
Balance | 11,106 | 10,299 |
Total |  |  |
Balance | 141,279 | 137,050 |
Additions for current year tax positions | 819 | 1,478 |
Additions for Reorganization Transactions |  | 226 |
Additions for prior years' tax positions: Accrual of interest and penalties | 509 | 209 |
Reductions for prior years' tax positions: Expiration of statute of limitations | (203) | (355) |
Reductions for prior years' tax positions: Other | (515) |  |
Balance | 141,889 | 138,608 |
Unrecognized tax benefits |  |  |
Amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate | 15,200 | 11,000 |
Unrecognized tax benefits attributable to tax refund claims in State of California | 93,900 |  |
Unrecognized tax benefits, reasonably possible to decrease within the next 12 months | 107,500 |  |
Unrecognized interest and penalties, reasonably possible to decrease within the next 12 months | 5,600 |  |
Net expense attributable to interest and penalties recorded | 100 | $ 400 |
Accrued interest and penalties attributable to uncertain tax positions and undisputed tax adjustments | 12,900 |  | $ 12,800
Accrued interest and penalties attributable to unrecognized tax benefits | $ 11,100 |  | $ 10,700

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- Definition The amount of the unrecognized tax benefit, excluding interest and penalties, of a position taken for which it is reasonably possible that the total amount thereof will significantly increase (decrease) within twelve months of the balance sheet date. + References No definition available. + Details
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- Definition The amount of the unrecognized tax benefit, interest and penalties, of a position taken for which it is reasonably possible that the total amount thereof will significantly increase (decrease) within twelve months of the balance sheet date. + References No definition available. + Details
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- Definition The portion of the amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns for items classified as other. + References No definition available. + Details
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- Definition Amount of increase in unrecognized tax benefits, excluding interest and penalties, resulting from change in reporting entity, including related reorganization transactions. + References No definition available. + Details
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- Definition Amount of increase in unrecognized tax benefits, excluding interest and penalties, resulting from tax positions that have been or will be taken in current period tax return. + References No definition available. + Details
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- Definition Amount of decrease in unrecognized tax benefits, excluding interest and penalties, resulting from lapses of applicable statutes of limitations. + References No definition available. + Details
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- Definition Represents the combined amount accrued for interest on an underpayment of income taxes and penalties related to uncertain tax positions and undisputed tax adjustments. + References No definition available. + Details
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