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Employee Retirement Plans (Tables) | 12 Months Ended
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Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract] |
Schedule of Defined Benefit Plans Disclosures | A summary of the plans’ net periodic pension cost, benefit obligations, funded status, and net balance sheet position is as follows (dollars in thousands):
| Fiscal 2016 |  | Fiscal 2015
| U.S. Plans |  | Non-U.S. Plans |  | U.S. Plans |  | Non-U.S. Plans
Net Periodic Pension Cost (Benefit): |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 456 |  |  | $ | 3,364 |  |  | $ | 505 |  |  | $ | 1,216 |
Interest cost | 1,280 |  |  | 41,606 |  |  | 1,254 |  |  | 12,992 |
Expected return on assets | (777 | ) |  | (68,845 | ) |  | (813 | ) |  | (20,547 | )
Amortization of net loss (gain) | 126 |  |  | 35 |  |  | 694 |  |  | — |
Curtailment (gain) loss | — |  |  | (632 | ) |  | — |  |  | 3,202 |
Pension settlement | — |  |  | — |  |  | — |  |  | — |
| $ | 1,085 |  |  | $ | (24,472 | ) |  | $ | 1,640 |  |  | $ | (3,137 | )
Change in Benefit Obligation: |  |  |  |  |  |  |  |  |  |  |
Benefit obligation – beginning of year | $ | 31,830 |  |  | $ | 1,476,370 |  |  | $ | 33,907 |  |  | $ | 16,114 |
Benefit obligation – acquisition | — |  |  | — |  |  | — |  |  | 1,495,089 |
Service cost | 456 |  |  | 3,364 |  |  | 505 |  |  | 1,216 |
Interest on benefit obligations | 1,280 |  |  | 41,606 |  |  | 1,254 |  |  | 12,992 |
Employee contributions | — |  |  | 404 |  |  | — |  |  | 182 |
Actuarial (gain) loss | (722 | ) |  | 297,754 |  |  | (2,969 | ) |  | 8,668 |
Pension settlement | — |  |  | — |  |  | — |  |  | — |
Net benefit payments | (895 | ) |  | (64,466 | ) |  | (867 | ) |  | (24,179 | )
Curtailment (gain) loss | — |  |  | (706 | ) |  | — |  |  | 3,202 |
Exchange effect | — |  |  | (275,833 | ) |  | — |  |  | (36,914 | )
Benefit obligation – end of year | $ | 31,949 |  |  | $ | 1,478,493 |  |  | $ | 31,830 |  |  | $ | 1,476,370 |
Change in Plan Assets: |  |  |  |  |  |  |  |  |  |  |
Plan assets at fair value – beginning of year | $ | 12,987 |  |  | $ | 1,287,723 |  |  | $ | 13,575 |  |  | $ | 15,306 |
Plan assets at fair value – acquisition | — |  |  | — |  |  | — |  |  | 1,305,506 |
Company contributions | 754 |  |  | 17,758 |  |  | 823 |  |  | 16,950 |
Investment gain (loss) | 743 |  |  | 161,405 |  |  | (544 | ) |  | 6,173 |
Employee contributions | — |  |  | 404 |  |  | — |  |  | 182 |
Benefit payments and plan expenses | (895 | ) |  | (64,466 | ) |  | (867 | ) |  | (24,179 | )
Exchange effect | — |  |  | (228,959 | ) |  | — |  |  | (32,215 | )
Plan assets at fair value – end of year | $ | 13,589 |  |  | $ | 1,173,865 |  |  | $ | 12,987 |  |  | $ | 1,287,723 |
Funded Status: |  |  |  |  |  |  |  |  |  |  |
Unfunded benefit obligation | $ | (18,360 | ) |  | $ | (304,628 | ) |  | $ | (18,843 | ) |  | $ | (188,647 | )
Amounts recognized in balance sheet at year end: |  |  |  |  |  |  |  |  |  |  |
Accrued pension benefits | $ | (18,360 | ) |  | $ | (304,628 | ) |  | $ | (18,843 | ) |  | $ | (188,647 | )
Pre-tax components in accumulated other comprehensive income at period end: |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss | $ | 4,908 |  |  | $ | 206,490 |  |  | $ | 5,725 |  |  | $ | 25,141 |
Pre-tax components in recognized in other comprehensive income for the period: |  |  |  |  |  |  |
Current year actuarial (gain) loss | $ | (691 | ) |  | $ | 181,384 |  |  | $ | (1,612 | ) |  | $ | 25,141 |
Actuarial loss recognized | (126 | ) |  | (35 | ) |  | (694 | ) |  | — |
Total amount recognized | $ | (817 | ) |  | $ | 181,349 |  |  | $ | (2,306 | ) |  | $ | 25,141 |
Accumulated Benefit Obligation | $ | 31,041 |  |  | $ | 1,478,435 |  |  | $ | 30,106 |  |  | $ | 1,475,631 |
Salary growth rate | n/a |  |  | 1.6 | % |  | n/a |  |  | 1.5 | %
Assumed discount rate | 3.9 | % |  | 2.5 | % |  | 4.1 | % |  | 3.7 | %
Expected return on assets | 6.0 | % |  | 6.2 | % |  | 6.0 | % |  | 6.2 | %
Schedule of Allocation of Plan Assets | The assets of the plans were invested in the following classes of securities (none of which were securities of the company): U.S. Plans:
| Target Allocation |  |  | Percentage of Plan Assets |
|  |  | 2016 |  |  | 2015 |
Equity | 48 | % |  | 51 | % |  | 47 | %
Fixed income | 40 |  |  | 39 |  |  | 39 |
Money market | 4 |  |  | 3 |  |  | 5 |
Other (real estate investment trusts & commodities contracts) | 8 |  |  | 7 |  |  | 9 |
| 100 | % |  | 100 | % |  | 100 | %
Non-U.S. Plans:
| Target Allocation |  |  | Percentage of Plan Assets |
|  |  | 2016 |  |  | 2015 |
Equity | 16 | % |  | 20 | % |  | 19 | %
Fixed income | 45 |  |  | 55 |  |  | 44 |
Alternatives/Other | 28 |  |  | 8 |  |  | 20 |
Real Estate | 11 |  |  | 12 |  |  | 12 |
Cash and cash equivalents | — |  |  | 5 |  |  | 5 |
| 100 | % |  | 100 | % |  | 100 | %
Pension Plans Fair Value Of Investments | The following tables summarize the basis used to measure the pension plans’ assets at fair value as of December 31, 2016 and January 2, 2016 (in thousands): U.S. Plans:
|  | Fiscal 2016 |  | Fiscal 2015
Asset Category |  | Total |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Net Asset Value |  |  | Total |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Net Asset Value |
Short Term Investment Fund (a) |  | $ | 368 |  |  | $ | — |  |  | $ | 368 |  |  | $ | 540 |  |  | $ | — |  |  | $ | 540 |
Equity Securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Large Cap |  | 3,055 |  |  | 3,055 |  |  | — |  |  | 3,149 |  |  | 3,149 |  |  | — |
Mid Cap |  | 512 |  |  | 512 |  |  | — |  |  | 383 |  |  | 383 |  |  | — |
Small Cap |  | 455 |  |  | 455 |  |  | — |  |  | 383 |  |  | 383 |  |  | — |
International |  | 2,917 |  |  | 2,917 |  |  | — |  |  | 2,291 |  |  | 2,291 |  |  | — |
Fixed Income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government/Corporate |  | 4,367 |  |  | 4,367 |  |  | — |  |  | 4,311 |  |  | 4,311 |  |  | — |
High Yield |  | 971 |  |  | 971 |  |  | — |  |  | 778 |  |  | 778 |  |  | — |
Alternative: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Global Real Estate Investment Trust |  | 539 |  |  | 539 |  |  | — |  |  | 771 |  |  | 771 |  |  | — |
Commodities Contracts |  | 405 |  |  | 405 |  |  | — |  |  | 381 |  |  | 381 |  |  | — |
Total |  | $ | 13,589 |  |  | $ | 13,221 |  |  | $ | 368 |  |  | $ | 12,987 |  |  | $ | 12,447 |  |  | $ | 540 |
(a) | Represents collective short term investment fund, composed of high-grade money market instruments with short maturities.
Non-U.S. Plans:
|  | Fiscal 2016
Asset Category |  | Total |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |  |  | Net Asset Value |
Cash and cash equivalents |  | $ | 58,131 |  |  | $ | 4,730 |  |  | $ | 2,886 |  |  | $ | — |  |  | $ | 50,515 |
Equity Securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |
UK |  | 87,828 |  |  | 2,098 |  |  | — |  |  | — |  |  | 85,730 |
International: |  |  |  |  |  |  |  |  |  |
Developed |  | 135,186 |  |  | 3,547 |  |  | — |  |  | — |  |  | 131,639 |
Emerging |  | 6,803 |  |  | 79 |  |  | — |  |  | — |  |  | 6,724 |
Unquoted/Private Equity |  | 3189 |  |  | 0 |  |  | — |  |  | — |  |  | 3,189 |
Fixed Income: |  |  |  |  |  |  |  |  |  |
Government/Corporate: |  |  |  |  |  |  |  |  |  |
UK |  | 317,621 |  |  | 11,203 |  |  | 14,009 |  |  | — |  |  | 292,409 |
International |  | 107,882 |  |  | — |  |  | 103 |  |  | — |  |  | 107,779 |
Index Linked |  | 212,327 |  |  | 4,205 |  |  | — |  |  | — |  |  | 208,122 |
Other |  | 3,812 |  |  | — |  |  | — |  |  | — |  |  | 3,812 |
Convertible Bonds |  | 160 |  |  | — |  |  | — |  |  | — |  |  | 160 |
Real Estate: |  |  |  |  |  |  |  |  |  |
Direct |  | 121,612 |  |  | — |  |  | 121,612 |  |  | — |  |  | — |
Indirect |  | 10,693 |  |  | 138 |  |  | — |  |  | — |  |  | 10,555 |
Hedge Fund Strategy: |  |  |  |  |  |  |  |  |  |
Equity Long/Short |  | 61,612 |  |  | — |  |  | — |  |  | — |  |  | 61,612 |
Arbitrage & Event |  | 64,961 |  |  | — |  |  | — |  |  | — |  |  | 64,961 |
Directional Trading & Fixed Income |  | 30,430 |  |  | — |  |  | — |  |  | — |  |  | 30,430 |
Cash & Other |  | 38,099 |  |  | — |  |  | — |  |  | — |  |  | 38,099 |
Direct Sourcing |  | 1,379 |  |  | — |  |  | — |  |  | — |  |  | 1,379 |
Leveraged Loans |  | 11,025 |  |  | — |  |  | — |  |  | — |  |  | 11,025 |
Alternative/Other |  | (98,885 | ) |  | — |  |  | — |  |  | 95 |  |  | (98,980 | )
Total |  | $ | 1,173,865 |  |  | $ | 26,000 |  |  | $ | 138,610 |  |  | $ | 95 |  |  | $ | 1,009,160 |
|  | Fiscal 2015
Asset Category |  | Total |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |  |  | Net Asset Value |
Cash and cash equivalents |  | $ | 73,006 |  |  | $ | 3,937 |  |  | $ | 3,288 |  |  | $ | — |  |  | $ | 65,781 |
Equity Securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |
UK |  | 91,269 |  |  | 2,565 |  |  | 194 |  |  | — |  |  | 88,510 |
International: |  |  |  |  |  |  |  |  |  |
Developed |  | 147,277 |  |  | 3,294 |  |  | 2,414 |  |  | — |  |  | 141,569 |
Emerging |  | 6,375 |  |  | 77 |  |  | — |  |  | — |  |  | 6,298 |
Unquoted/Private Equity |  | 759 |  |  | — |  |  | — |  |  | — |  |  | 759 |
Fixed Income: |  |  |  |  |  |  |  |  |  |
Government/Corporate: |  |  |  |  |  |  |  |  |  |
UK |  | 168,706 |  |  | 10,816 |  |  | 19,952 |  |  | — |  |  | 137,938 |
International |  | 126,735 |  |  | — |  |  | 1,046 |  |  | — |  |  | 125,689 |
Index Linked |  | 258,502 |  |  | — |  |  | — |  |  | — |  |  | 258,502 |
Other |  | 3,518 |  |  | — |  |  | — |  |  | — |  |  | 3,518 |
Convertible Bonds |  | 1,471 |  |  | — |  |  | — |  |  | — |  |  | 1,471 |
Real Estate: |  |  |  |  |  |  |  |  |  |
Direct |  | 140,765 |  |  | — |  |  | 140,765 |  |  | — |  |  | — |
Indirect |  | 13,617 |  |  | 177 |  |  | — |  |  | — |  |  | 13,440 |
Hedge Fund Strategy: |  |  |  |  |  |  |  |  |  |
Equity Long/Short |  | 80,230 |  |  | — |  |  | — |  |  | — |  |  | 80,230 |
Arbitrage & Event |  | 92,635 |  |  | — |  |  | — |  |  | — |  |  | 92,635 |
Directional Trading & Fixed Income |  | 55,424 |  |  | — |  |  | — |  |  | — |  |  | 55,424 |
Cash & Other |  | 2,557 |  |  | — |  |  | — |  |  | — |  |  | 2,557 |
Direct Sourcing |  | 1,655 |  |  | — |  |  | — |  |  | — |  |  | 1,655 |
Leveraged Loans |  | 10,824 |  |  | — |  |  | — |  |  | — |  |  | 10,824 |
Alternative/Other |  | 12,398 |  |  | 288 |  |  | — |  |  | — |  |  | 12,110 |
Total |  | $ | 1,287,723 |  |  | $ | 21,154 |  |  | $ | 167,659 |  |  | $ | — |  |  | $ | 1,098,910 |
Schedule of Expected Benefit Payments | Estimated future benefit payments under the plans are as follows (dollars in thousands):
| U.S. Plans |  | Non-U.S. Plans
2017 | $ | 977 |  |  | $ | 54,702 |
2018 | 1,648 |  |  | 56,430 |
2019 | 1,653 |  |  | 57,493 |
2020 | 1,674 |  |  | 59,525 |
2021 through 2026 | 10,634 |  |  | 368,206 |

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