Other Long-Term Obligations - (Details) - USD ($) |
Dec. 31, 2016 |
Dec. 31, 2015 |
Apr. 23, 2015 |
|---|---|---|---|
| Other Liabilities Disclosure [Abstract] | |||
| Deferred income taxes | $ 31,079,000 | $ 32,115,000 | |
| Convertible debt conversion liability | 30,708,000 | 0 | |
| Product liability | 16,615,000 | 14,582,000 | |
| Pension | 13,258,000 | 9,868,000 | |
| Deferred gain on sale leaseback | 6,703,000 | 6,978,000 | $ 7,414,000 |
| Supplemental Executive Retirement Plan liability | 5,612,000 | 4,930,000 | |
| Deferred compensation | 3,593,000 | 4,167,000 | |
| Uncertain tax obligation including interest | 3,150,000 | 4,467,000 | |
| Other | 3,689,000 | 5,482,000 | |
| Total long-term obligations | $ 114,407,000 | $ 82,589,000 |