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Accounting Policies and Basis of Presentation (Details) (USD $) | 3 Months Ended | 6 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jun. 29, 2013 | Jun. 30, 2012 | Jun. 29, 2013 | Jun. 30, 2012 | Jan. 28, 2012 PS International | Jun. 29, 2013 PS International | Mar. 31, 2012 PS International | Dec. 31, 2012 PS International | Jan. 02, 2012 PS International
Equity method investments |  |  |  |  |  |  |  |  |
Percentage ownership acquired |  |  |  |  |  |  |  |  | 50.00%
Ownership after increase (as a percent) |  |  |  |  | 70.00% |  |  | 85.00% |
Total cash paid, net of cash acquired |  |  |  | $ 2,825,000 | $ 2,825,000 | $ 515,000 | $ 2,825,000 |  |
Increase in working capital |  |  |  |  |  |  | 14,419,000 |  |
Increase in fixed assets |  |  |  |  |  |  | 163,000 |  |
Increase in goodwill |  |  |  |  |  |  | 2,590,000 |  |
Increase in intangible assets |  |  |  |  |  | 515,000 | 621,000 |  |
Increase in other long-term assets |  |  |  |  |  |  | 96,000 |  |
Increase in non-controlling interest |  |  |  |  |  |  | 5,649,000 |  |
Decrease in investment in and advances to affiliates |  |  |  |  |  |  | 9,415,000 |  |
Non-cash, pay-in-kind interest income and accretion of discount recognized on a note receivable from an affiliate | $ 3,320,000 | $ 2,940,000 | $ 6,431,000 | $ 5,758,000 |  |  |  |  |

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