Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Statement Of Income And Comprehensive Income [Abstract] | ||||
| Net income | $ 5,415 | $ 9,293 | $ 13,402 | $ 19,818 |
| Other comprehensive income (loss), net of tax: | ||||
| Change in fair value of interest rate swap agreements | 612 | (1,126) | 66 | (2,322) |
| Total other comprehensive income (loss) | 612 | (1,126) | 66 | (2,322) |
| Comprehensive income | $ 6,027 | $ 8,167 | $ 13,468 | $ 17,496 |