Leases and Rentals - Schedule of Capital Lease Obligations (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Capital Leased Assets [Line Items] | ||
| Total | $ 180 | $ 488 |
| Other accrued liabilities | ||
| Capital Leased Assets [Line Items] | ||
| Other accrued liabilities | 69 | 302 |
| Other non-current liabilities | ||
| Capital Leased Assets [Line Items] | ||
| Other non-current liabilities | $ 111 | $ 186 |