Income Taxes (Schedule of effective income tax rate reconciliation) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Income Taxes [Abstract] | |||
| Computed expected income tax provision (benefit) | $ (7,312) | $ (6,917) | $ 32,195 |
| State income tax (net of federal benefit) | 757 | 780 | 1,314 |
| Valuation allowance | (2,534) | 2,804 | (28,443) |
| Goodwill impairment | 6,266 | ||
| Nondeductible expenses | 249 | 493 | 81 |
| Uncertain tax position reserve | (7) | 244 | |
| Noncontrolling interest | (40) | 133 | 53 |
| Other | 349 | 893 | 778 |
| Income Tax Provision (Benefit) | $ (2,272) | $ (1,570) | $ 5,978 |
| Effective income tax rate | 10.60% | 7.90% | 6.50% |