v3.3.1.900

INCOME TAXES - Effective income tax rate on earnings (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Reconciliation of effective tax rate on earnings (loss) from continuing operations before income taxes and the U.S. federal income tax statutory rate |  |  |
Income tax expense at the federal statutory rate | $ 57,237,000 | $ 34,035,000 | $ 34,902,000
Effect of: |  |  |
State income taxes | 6,180,000 | 195,000 | 1,479,000
Increase (decrease) in reserve for uncertain tax positions | (1,031,000) | 1,050,000 | 2,193,000
Federal and state credits | (2,686,000) | (2,985,000) | (2,600,000)
Change in net operating loss carryforward for excess tax deductions |  |  | (28,206,000)
Permanent items | 101,000 | 1,485,000 | 537,000
Other items | 155,000 | (1,100,000) | (6,088,000)
Valuation allowance | (281,000) | 790,000 | (265,600,000)
Income Tax Expense (Benefit) | $ 59,675,000 | $ 33,470,000 | $ (263,383,000)
Effective income tax rate (as a percent) | 36.50% | 34.40% | (264.10%)
Reduction of uncertain tax positions and net discrete tax benefit | $ 2,900,000 |  |
Net Discrete Benefit For Reduction of Uncertain Tax Positions | 2,100,000 |  |
Gross decreases-tax position in prior periods | 800,000 |  |
Increase of uncertain tax positions and net discrete tax provision | (2,200,000) |  | $ (500,000)
Net discrete tax provision for interest | 1,000,000 |  |
Net discrete tax provision for interest, net of tax | (610,000) |  |
Deferred tax assets reinstated | 9,200,000 |  |
Interest and taxes payable | $ 10,200,000 |  |

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- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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