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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) | 9 Months Ended
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Oct. 01, 2017
Equity [Abstract] |
Schedule of Comprehensive Loss | Changes in the balance of each component of accumulated other comprehensive loss during the reporting periods were as follows:
| Thirteen weeks ended
| October 1, 2017 | September 23, 2016
(in thousands) | Balance at beginning of period | Current period other comprehensive income | Balance at end of period |  | Balance at beginning of period | Current period other comprehensive income | Balance at end of period
Foreign currency translation adjustment | $ | (9,344 | ) | $ | 1,143 |  | $ | (8,201 | ) |  | $ | (11,420 | ) | $ | 1,247 |  | $ | (10,173 | )
Unrealized gain (loss) on investments (1) | 897 |  | 424 |  | 1,321 |  |  | (337 | ) | 784 |  | 447 |
Total other comprehensive income (loss), net of tax | $ | (8,447 | ) | $ | 1,567 |  | $ | (6,880 | ) |  | $ | (11,757 | ) | $ | 2,031 |  | $ | (9,726 | )
| Thirty-nine weeks ended
| October 1, 2017 | September 23, 2016
(in thousands) | Balance at beginning of period | Current period other comprehensive income | Balance at end of period |  | Balance at beginning of period | Current period other comprehensive income | Balance at end of period
Foreign currency translation adjustment | $ | (11,684 | ) | $ | 3,483 |  | $ | (8,201 | ) |  | $ | (13,514 | ) | $ | 3,341 |  | $ | (10,173 | )
Unrealized gain (loss) on investments (1) | 251 |  | 1,070 |  | 1,321 |  |  | (499 | ) | 946 |  | 447 |
Total other comprehensive income (loss), net of tax | $ | (11,433 | ) | $ | 4,553 |  | $ | (6,880 | ) |  | $ | (14,013 | ) | $ | 4,287 |  | $ | (9,726 | )
(1) | Consists of deferred compensation plan accounts, which are comprised of mutual funds classified as available-for-sale securities. The tax impact on unrealized gain (loss) on available-for-sale securities was de minimis for the thirteen and thirty-nine weeks ended October 1, 2017 and September 23, 2016, respectively.

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e526-108580 + Details
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