Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands |
Sep. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Allowance for accounts receivable | $ 2,065 | $ 2,065 |
| Preferred stock, par value (in usd per share) | $ 0.01 | $ 0.01 |
| Preferred stock, shares authorized (in shares) | 2,000,000 | 2,000,000 |
| Preferred stock, shares issued (in shares) | 0 | 0 |
| Common stock, par value (in usd per share) | $ 0.01 | $ 0.01 |
| Common stock, shares authorized (in shares) | 40,000,000 | 40,000,000 |
| Common stock, shares issued (in shares) | 26,750,703 | 26,715,216 |
| Treasury stock, shares (in shares) | 6,027,455 | 6,027,455 |