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Supplemental Guarantor Condensed Consolidating Financial Statements - Condensed Consolidating Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 30, 2012 | Jan. 01, 2012 | Jan. 02, 2011 | Jan. 03, 2010
--- | --- | --- | --- | ---
Current Assets: |  |  |  |
Cash and cash equivalents | $ 90,533 | $ 50,624 | $ 69,225 | $ 115,352
Accounts receivable | 137,313 | 140,800 |  |
Inventories | 141,176 | 140,485 |  |
Assets of business held for sale | 0 | 60,683 |  |
Total current assets | 430,651 | 422,813 |  |
Property and equipment less accumulated depreciation | 165,725 | 177,925 |  |
Goodwill | 75,672 | 74,557 |  |
Other assets | 54,463 | 49,687 |  |
Total assets | 789,367 | 772,272 |  |
LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |  |
Current Liabilities: | 161,826 | 151,188 |  |
Senior notes | 275,000 | 283,030 |  |
Deferred income taxes | 7,339 | 8,391 |  |
Other | 49,500 | 37,147 |  |
Total liabilities | 493,665 | 491,233 |  |
Shareholders' equity |  |  |  |
Common stock | 6,606 | 6,548 |  |
Additional paid-in capital | 366,677 | 361,400 |  |
Retained earnings (deficit) | (16,746) | (16,764) |  |
Foreign currency translation adjustment | (25,344) | (33,883) |  |
Pension liability | (35,491) | (36,262) |  |
Total shareholders' equity | 295,702 | 281,039 |  |
Total liabilities and shareholders' equity | 789,367 | 772,272 |  |
GUARANTOR SUBSIDIARIES [Member] |  |  |  |
Current Assets: |  |  |  |
Cash and cash equivalents | 4,072 | 1,090 | 1,075 | 534
Accounts receivable | 59,108 | 57,745 |  |
Inventories | 64,134 | 69,947 |  |
Prepaids and deferred income taxes | 4,274 | 5,158 |  |
Assets of business held for sale | 0 | 60,683 |  |
Total current assets | 131,588 | 194,623 |  |
Property and equipment less accumulated depreciation | 75,692 | 70,109 |  |
Investment in subsidiaries | 492,576 | 286,328 |  |
Goodwill | 6,542 | 6,954 |  |
Other assets | 1,911 | 1,197 |  |
Total assets | 708,309 | 559,211 |  |
LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |  |
Current Liabilities: | 56,766 | 55,487 |  |
Senior notes | 0 |  |  |
Senior notes and senior subordinated notes |  | 0 |  |
Deferred income taxes | 0 | 11,044 |  |
Other | 3 | 7,315 |  |
Total liabilities | 56,769 | 73,846 |  |
Shareholders' equity |  |  |  |
Common stock | 81,844 | 94,145 |  |
Additional paid-in capital | 182,782 | 249,302 |  |
Retained earnings (deficit) | 388,857 | 143,617 |  |
Foreign currency translation adjustment | (1,943) | (1,699) |  |
Pension liability | 0 | 0 |  |
Total shareholders' equity | 651,540 | 485,365 |  |
Total liabilities and shareholders' equity | 708,309 | 559,211 |  |
NON-GUARANTOR SUBSIDIARIES [Member] |  |  |  |
Current Assets: |  |  |  |
Cash and cash equivalents | 36,186 | 35,874 | 32,601 | 41,072
Accounts receivable | 77,710 | 82,429 |  |
Inventories | 77,042 | 70,538 |  |
Prepaids and deferred income taxes | 43,979 | 16,040 |  |
Assets of business held for sale | 0 | 0 |  |
Total current assets | 234,917 | 204,881 |  |
Property and equipment less accumulated depreciation | 86,760 | 103,741 |  |
Investment in subsidiaries | 193,625 | 184,108 |  |
Goodwill | 69,130 | 67,603 |  |
Other assets | 9,190 | 9,680 |  |
Total assets | 593,622 | 570,013 |  |
LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |  |
Current Liabilities: | 82,300 | 84,455 |  |
Senior notes | 0 |  |  |
Senior notes and senior subordinated notes |  | 0 |  |
Deferred income taxes | 10,815 | 1,615 |  |
Other | 2,618 | 1,902 |  |
Total liabilities | 95,733 | 87,972 |  |
Shareholders' equity |  |  |  |
Common stock | 102,199 | 102,199 |  |
Additional paid-in capital | 12,525 | 12,525 |  |
Retained earnings (deficit) | 431,341 | 425,710 |  |
Foreign currency translation adjustment | (16,691) | (25,129) |  |
Pension liability | (31,485) | (33,264) |  |
Total shareholders' equity | 497,889 | 482,041 |  |
Total liabilities and shareholders' equity | 593,622 | 570,013 |  |
INTERFACE, INC. (PARENT CORPORATION) [Member] |  |  |  |
Current Assets: |  |  |  |
Cash and cash equivalents | 50,275 | 13,660 | 35,549 | 73,746
Accounts receivable | 495 | 626 |  |
Inventories | 0 | 0 |  |
Prepaids and deferred income taxes | 13,376 | 9,023 |  |
Assets of business held for sale | 0 | 0 |  |
Total current assets | 64,146 | 23,309 |  |
Property and equipment less accumulated depreciation | 3,273 | 4,075 |  |
Investment in subsidiaries | (149,980) | 116,316 |  |
Goodwill | 0 | 0 |  |
Other assets | 106,218 | 86,100 |  |
Total assets | 23,657 | 229,800 |  |
LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |  |
Current Liabilities: | 22,760 | 11,246 |  |
Senior notes | 275,000 |  |  |
Senior notes and senior subordinated notes |  | 294,507 |  |
Deferred income taxes | (3,476) | (4,268) |  |
Other | 46,879 | 27,930 |  |
Total liabilities | 341,163 | 329,415 |  |
Shareholders' equity |  |  |  |
Common stock | 6,606 | 6,548 |  |
Additional paid-in capital | 366,677 | 361,400 |  |
Retained earnings (deficit) | (680,073) | (457,510) |  |
Foreign currency translation adjustment | (6,710) | (7,055) |  |
Pension liability | (4,006) | (2,998) |  |
Total shareholders' equity | (317,506) | (99,615) |  |
Total liabilities and shareholders' equity | 23,657 | 229,800 |  |
CONSOLIDATION AND ELIMINATION ENTRIES [Member] |  |  |  |
Current Assets: |  |  |  |
Cash and cash equivalents | 0 | 0 | 0 | 0
Accounts receivable | 0 | 0 |  |
Inventories | 0 | 0 |  |
Prepaids and deferred income taxes | 0 | 0 |  |
Assets of business held for sale | 0 | 0 |  |
Total current assets | 0 | 0 |  |
Property and equipment less accumulated depreciation | 0 | 0 |  |
Investment in subsidiaries | (536,221) | (586,752) |  |
Goodwill | 0 | 0 |  |
Other assets | 0 | 0 |  |
Total assets | (536,221) | (586,752) |  |
LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |  |
Current Liabilities: | 0 | 0 |  |
Senior notes | 0 |  |  |
Senior notes and senior subordinated notes |  | 0 |  |
Deferred income taxes | 0 | 0 |  |
Other | 0 | 0 |  |
Total liabilities | 0 | 0 |  |
Shareholders' equity |  |  |  |
Common stock | (184,043) | (196,344) |  |
Additional paid-in capital | (195,307) | (261,827) |  |
Retained earnings (deficit) | (156,871) | (128,581) |  |
Foreign currency translation adjustment | 0 | 0 |  |
Pension liability | 0 | 0 |  |
Total shareholders' equity | (536,221) | (586,752) |  |
Total liabilities and shareholders' equity | (536,221) | (586,752) |  |
CONSOLIDATED TOTALS [Member] |  |  |  |
Current Assets: |  |  |  |
Cash and cash equivalents | 90,533 | 50,624 | 69,225 | 115,352
Accounts receivable | 137,313 | 140,800 |  |
Inventories | 141,176 | 140,485 |  |
Prepaids and deferred income taxes | 61,629 | 30,221 |  |
Assets of business held for sale | 0 | 60,683 |  |
Total current assets | 430,651 | 422,813 |  |
Property and equipment less accumulated depreciation | 165,725 | 177,925 |  |
Investment in subsidiaries | 0 | 0 |  |
Goodwill | 75,672 | 74,557 |  |
Other assets | 117,319 | 96,977 |  |
Total assets | 789,367 | 772,272 |  |
LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |  |
Current Liabilities: | 161,826 | 151,188 |  |
Senior notes | 275,000 |  |  |
Senior notes and senior subordinated notes |  | 294,507 |  |
Deferred income taxes | 7,339 | 8,391 |  |
Other | 49,500 | 37,147 |  |
Total liabilities | 493,665 | 491,233 |  |
Shareholders' equity |  |  |  |
Common stock | 6,606 | 6,548 |  |
Additional paid-in capital | 366,677 | 361,400 |  |
Retained earnings (deficit) | (16,746) | (16,764) |  |
Foreign currency translation adjustment | (25,344) | (33,883) |  |
Pension liability | (35,491) | (36,262) |  |
Total shareholders' equity | 295,702 | 281,039 |  |
Total liabilities and shareholders' equity | $ 789,367 | $ 772,272 |  |

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