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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2015
Income Tax Disclosure [Abstract] |
Summary of Provision for Income Taxes | The following table summarizes the provision for income taxes:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Current: |  |  |  |  |
Federal | $ | 11,917,000 |  |  | $ | 21,030,000 |  |  | $ | 19,045,000 |
State | 2,173,000 |  |  | 4,095,000 |  |  | 5,381,000 |
| 14,090,000 |  |  | 25,125,000 |  |  | 24,426,000 |
Deferred: |  |  |  |  |
Federal | 13,646,000 |  |  | (12,708,000 | ) |  | (4,172,000 | )
State | 4,004,000 |  |  | (2,559,000 | ) |  | (894,000 | )
| 17,650,000 |  |  | (15,267,000 | ) |  | (5,066,000 | )
Tax Provision | $ | 31,740,000 |  |  | $ | 9,858,000 |  |  | $ | 19,360,000 |
Significant Components of Federal and State Deferred Tax Assets and Liabilities | Significant components of our federal and state deferred tax assets and liabilities are as follows:
| Years Ended December 31,
| 2015 |  | 2014
Net current deferred assets (liabilities): |  |  |
Allowance for doubtful accounts | $ | 1,819,000 |  |  | $ | 2,427,000 |
Accrued insurance claims — current | 1,389,000 |  |  | 5,974,000 |
Expensing of housekeeping supplies | (6,463,000 | ) |  | (6,622,000 | )
Other | 3,859,000 |  |  | 1,676,000 |
| $ | 604,000 |  |  | $ | 3,455,000 |
Net noncurrent deferred assets (liabilities): |  |  |
Deferred compensation | $ | 9,191,000 |  |  | $ | 8,681,000 |
Non-deductible reserves | 5,000 |  |  | 5,000 |
Depreciation of property and equipment | (3,237,000 | ) |  | (3,160,000 | )
Accrued insurance claims — noncurrent | 4,397,000 |  |  | 19,982,000 |
Amortization of intangibles | 971,000 |  |  | 1,229,000 |
Other | 636,000 |  |  | 496,000 |
| $ | 11,963,000 |  |  | $ | 27,233,000 |
Reconciliation of The Provision for Income Taxes | A reconciliation of the provision for income taxes and the amount computed by applying the statutory federal income tax rate to income before income taxes is as follows:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Tax expense computed at statutory rate | $ | 31,418,000 |  |  | $ | 11,098,000 |  |  | $ | 23,271,000 |
Increases (decreases) resulting from: |  |  |  |  |
State income taxes, net of federal tax benefit | 4,015,000 |  |  | 998,000 |  |  | 2,916,000 |
Federal jobs credits | (3,900,000 | ) |  | (2,925,000 | ) |  | (7,121,000 | )
Tax exempt interest | (132,000 | ) |  | (13,000 | ) |  | (29,000 | )
Other, net | 339,000 |  |  | 700,000 |  |  | 323,000 |
| $ | 31,740,000 |  |  | $ | 9,858,000 |  |  | $ | 19,360,000 |

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