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v3.8.0.1

Income Taxes (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Deferred tax liabilities: |  |  |
Prepaid assets | $ (3,957,000) | $ (7,133,000) |
Depreciation | (2,021,000) | (936,000) |
Software development costs | (3,732,000) | (3,960,000) |
Total deferred tax liabilities | (9,710,000) | (12,029,000) |
Deferred tax assets: |  |  |
Accrued incentive compensation | 3,510,000 | 8,590,000 |
Net operating loss carryforward | 774,000 | 1,300,000 |
Workers’ compensation accruals | 4,586,000 | 7,891,000 |
Accrued rent | 676,000 | 1,092,000 |
Stock-based compensation | 4,233,000 | 6,217,000 |
Intangibles | 4,000 | 618,000 |
Minority investment impairment | 667,000 | 1,021,000 |
Other | 212,000 | 349,000 |
Total deferred tax assets | 14,662,000 | 27,078,000 |
Valuation allowance | (669,000) | (1,024,000) |
Total net deferred tax assets | 13,993,000 | 26,054,000 |
Net deferred tax assets | 4,283,000 | 14,025,000 |
Current income tax expense: |  |  |
Federal | 30,009,000 | 31,045,000 | $ 35,221,000
State | 5,988,000 | 5,190,000 | 5,741,000
Total current income tax expense | 35,997,000 | 36,235,000 | 40,962,000
Deferred income tax (benefit) expense: |  |  |
Federal | 9,549,000 | 2,641,000 | (13,632,000)
State | 193,000 | 310,000 | (1,101,000)
Total deferred income tax (benefit) expense | 9,742,000 | 2,951,000 | (14,733,000)
Total income tax expense | 45,739,000 | 39,186,000 | 26,229,000
Income tax benefit recognized related to Equity Compensation after adoption of ASU 2016-09, Quantification | $ 6,800,000 | $ 1,500,000 |
Income tax benefit recognized related to Equity Compensation after adoption of ASU 2016-09, per share | $ 0.16 | $ 0.04 |
Net income tax expense (benefit) on nonqualified stock option exercises |  |  | 2,216,000
Reconciliation of income tax expense [Abstract] |  |  |
Assumed income tax rate (in hundredths) | 35.00% |  |
Expected income tax expense at 35% | $ 45,549,000 | $ 36,812,000 | 22,967,000
State income taxes, net of federal benefit | 4,085,000 | 3,684,000 | 2,696,000
Nondeductible expenses | 2,649,000 | 1,669,000 | 1,669,000
Section 199 benefits | (875,000) | (686,000) | (627,000)
Equity compensation | (6,218,000) | (1,338,000) | 0
Research and development credit | (634,000) | (751,000) | (530,000)
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount | (669,000) | 0 | 0
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount | 2,559,000 | 0 | 0
Other, net | (707,000) | (204,000) | 54,000
Total income tax expense | 45,739,000 | 39,186,000 | 26,229,000
Business Acquisition [Line Items] |  |  |
Liability for Uncertain Tax Positions, Current | 0 | $ 0 | $ 0
Enactment of US Tax Reform | 2,500,000 |  |
ExpensAble [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Operating Loss Carryforwards | $ 3,100,000 |  |
Minimum [Member] | ExpensAble [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Net operating loss carryforwards, expiration date | Jan. 01, 2023 |  |
Maximum [Member] | ExpensAble [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Net operating loss carryforwards, expiration date | Jan. 01, 2030 |  |

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