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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 28, 2015 | Jul. 03, 2016 | Jun. 28, 2015 | Dec. 31, 2015
Significant Accounting Policies [Line Items] |  |  |  |
Fair value measurements, transfers between Level 1 and Level 2 | $ 0 | $ 0 | $ 0 |
Original maturity period of cash and cash equivalents |  | Three months or less |  |
Gain/(Loss) on disposal of discontinued operations, net of tax | (86,000) |  | (86,000) |
Trapeze [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Gain/(Loss) on disposal of discontinued operations, before income tax | (200,000) |  | (200,000) |
Gain/(Loss) on disposal of discontinued operations, net of tax | $ (100,000) |  | $ (100,000) |
Current Assets [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Decrease in value of assets and liabilities due to adoption of ASU |  |  |  | $ 6,000,000
Long-Term Debt [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Decrease in value of assets and liabilities due to adoption of ASU |  |  |  | 25,200,000
Other Long-Lived Assets [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Decrease in value of assets and liabilities due to adoption of ASU |  |  |  | $ 19,200,000
Standby Letters of Credit [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Loss contingency, range of possible loss, portion not accrued |  | $ 8,900,000 |  |
Bank Guaranties [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Loss contingency, range of possible loss, portion not accrued |  | 2,900,000 |  |
Surety Bonds [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Loss contingency, range of possible loss, portion not accrued |  | $ 2,400,000 |  |

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