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Long-Term Obligations - Narrative (Details) € in Millions |  | 3 Months Ended |
--- | --- | --- | ---
Mar. 02, 2017 USD ($) | Mar. 02, 2017 EUR (€) | Apr. 01, 2017 USD ($) | Apr. 02, 2016 USD ($) | Dec. 31, 2016 USD ($)
Debt Instrument [Line Items] |  |  |  |  |
Proceeds from issuance of debt |  |  | $ 8,000,000 | $ 41,046,000 |
Weighted average interest rate for revolving credit facility (in hundredths) |  |  | 1.68% |  |
Loan receivable |  |  | $ 288,000 |  |
Capital lease obligations |  |  | 4,359,000 |  | $ 4,309,000
Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Revolving Credit Facility, due 2022 |  |  | 65,625,000 |  | $ 61,494,000
Remaining borrowing capacity |  |  | 134,960,000 |  |
Revolving Credit Facility [Member] | Euro-Denominated Borrowing [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Revolving Credit Facility, due 2022 |  |  | $ 26,625,000 |  |
Capital Lease Obligations [Member] | Sale Leaseback Arrangement [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Effective interest rate |  |  | 1.70% |  |
Net purchase option |  |  | $ 1,428,000 |  |
Capital lease obligations |  |  | 4,243,000 |  |
Capital Lease Obligations [Member] | PAAL Equipment Capital Lease [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Capital lease obligations |  |  | $ 116,000 |  |
Weighted average interest rate |  |  | 3.44% |  |
Remaining term |  |  | 2 years 10 months 24 days |  |
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Term of unsecured revolving credit facility | 5 years | 5 years |  |  |
Borrowing capacity available under committed portion | $ 200,000,000 |  |  |  |
Additional borrowing capacity | $ 100,000,000 |  |  |  |
Basis spread on variable rate floor (as a percentage) | 0.00% | 0.00% |  |  |
Percentage of foreign unrestricted cash | 65.00% |  |  |  |
Maximum unrestricted cash | $ 30,000,000 |  |  |  |
Proceeds from issuance of debt | $ 42,000,000 | € 26.3 |  |  |
Maximum consolidated leverage ratio | 3.5 | 3.5 |  |  |
Minimum consolidated interest coverage ratio | 3 | 3 |  |  |
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] | Federal Funds Rate [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate (in hundredths) | 0.50% | 0.50% |  |  |
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] | Thirty-day LIBOR [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate (in hundredths) | 0.50% | 0.50% |  |  |
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] | LIBOR [Member] | Minimum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate (in hundredths) | 1.00% | 1.00% |  |  |
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] | LIBOR [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate (in hundredths) | 2.00% | 2.00% |  |  |

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