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SUPPLEMENTAL BALANCE SHEET INFORMATOIN | 12 Months Ended
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Dec. 31, 2016
Supplemental Balance Sheet Information [Abstract] |
SUPPLEMENTAL BALANCE SHEET INFORMATION | SUPPLEMENTAL BALANCE SHEET INFORMATION The composition of trade receivables, net is as follows:
| December 31, 2016 |  | December 26, 2015
| (in thousands)
Client receivables | $ | 283,997 |  |  | $ | 230,010 |
Unbilled revenue | 82,203 |  |  | 45,996 |
Total | 366,200 |  |  | 276,006 |
Less: Allowance for doubtful accounts | (2,150 | ) |  | (5,938 | )
Trade receivables, net | $ | 364,050 |  |  | $ | 270,068 |
Recoveries to the allowance for doubtful accounts in fiscal year 2016 were $0.5 million. Provisions to the allowance for doubtful accounts in fiscal years 2015 and 2014 were $1.8 million and $0.5 million, respectively. The composition of inventories is as follows:
| December 31, 2016 |  | December 26, 2015
| (in thousands)
Raw materials and supplies | $ | 18,893 |  |  | $ | 15,998 |
Work in process | 13,681 |  |  | 12,101 |
Finished products | 63,259 |  |  | 65,636 |
Inventories | $ | 95,833 |  |  | $ | 93,735 |
The composition of other current assets is as follows:
| December 31, 2016 |  | December 26, 2015
| (in thousands)
Investments | $ | 3,771 |  |  | $ | 20,516 |
Prepaid income tax | 40,705 |  |  | 26,350 |
Restricted cash | 532 |  |  | 271 |
Other | — |  |  | 149 |
Other current assets | $ | 45,008 |  |  | $ | 47,286 |
The composition of property, plant and equipment, net is as follows:
| December 31, 2016 |  | December 26, 2015
| (in thousands)
Land | $ | 47,392 |  |  | $ | 39,846 |
Buildings (1) | 784,129 |  |  | 713,841 |
Machinery and equipment | 403,123 |  |  | 362,695 |
Leasehold improvements | 47,071 |  |  | 41,477 |
Furniture and fixtures | 24,148 |  |  | 21,783 |
Computer hardware and software | 127,283 |  |  | 113,466 |
Vehicles | 4,118 |  |  | 3,819 |
Construction in progress | 24,703 |  |  | 25,845 |
Total | 1,461,967 |  |  | 1,322,772 |
Less: Accumulated depreciation | (706,140 | ) |  | (644,813 | )
Property, plant and equipment, net | $ | 755,827 |  |  | $ | 677,959 |
(1) The balances as of December 31, 2016 and December 26, 2015 include capital lease buildings. See Note 7, “Long-Term Debt and Capital Lease Obligations.” Depreciation expense in fiscal years 2016, 2015 and 2014 was $85.0 million, $70.7 million and $70.5 million, respectively. The composition of other assets is as follows:
| December 31, 2016 |  | December 26, 2015
| (in thousands)
Life insurance policies | $ | 29,456 |  |  | $ | 27,554 |
Venture capital investments | 45,331 |  |  | 32,730 |
Restricted cash | 1,736 |  |  | 1,745 |
Other | 11,907 |  |  | 9,614 |
Other assets | $ | 88,430 |  |  | $ | 71,643 |
The composition of other current liabilities is as follows:
| December 31, 2016 |  | December 26, 2015
| (in thousands)
Accrued income taxes | $ | 25,621 |  |  | $ | 12,168 |
Other | 879 |  |  | 376 |
Other current liabilities | $ | 26,500 |  |  | $ | 12,544 |
The composition of other long-term liabilities is as follows:
| December 31, 2016 |  | December 26, 2015
| (in thousands)
Long-term pension liability | $ | 89,984 |  |  | $ | 34,604 |
Accrued executive supplemental life insurance retirement plan and deferred compensation plan | 32,880 |  |  | 30,188 |
Other | 36,375 |  |  | 24,270 |
Other long-term liabilities | $ | 159,239 |  |  | $ | 89,062 |

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