Composition of Certain Financial Statement Captions - Schedule of Other Accrued Liabilities (Details) - USD ($) $ in Thousands |
Jun. 26, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Other Accrued Liabilities | ||
| Workers' compensation, auto and general liability reserve | $ 7,572 | $ 9,637 |
| Exelis indemnified receivable obligation | 10,525 | 11,411 |
| Insurance financing | 10,839 | 0 |
| Accrued liabilities | 15,043 | 16,025 |
| Total | $ 43,979 | $ 37,073 |