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Reportable Segment Information (Business Segment Information) (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 29, 2018 USD ($) segment | Dec. 30, 2017 USD ($) | Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items] |  |  |
Number of business segments | segment | 2 |  |
Net sales | $ 2,257,895 | $ 2,175,882 | $ 2,203,489
Operating Income (Loss) | 128,173 | 76,690 | 133,692
Interest Expense | 9,448 | 6,078 | 4,781
Total | 118,725 | 70,612 | 128,911
Depreciation and amortization expense | 74,788 | 72,872 | 68,947
Capital expenditures (including capitalized software) | 63,696 | 127,391 | 119,584
Identifiable assets | 1,401,844 | 1,391,550 | 1,330,234
Restructuring and impairment charges | 15,725 | 37,416 | 11,005
Office Furniture |  |  |
Segment Reporting Information [Line Items] |  |  |
Restructuring and impairment charges | 16,400 | 32,500 | 10,900
Hearth Products |  |  |
Segment Reporting Information [Line Items] |  |  |
Restructuring and impairment charges | 1,200 | 4,900 | 5,500
Operating | Office Furniture |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 1,706,092 | 1,660,723 | 1,703,885
Operating profit | 79,323 | 50,176 | 117,397
Depreciation and amortization expense | 44,303 | 48,435 | 45,088
Capital expenditures (including capitalized software) | 47,860 | 79,458 | 65,944
Identifiable assets | 797,574 | 821,767 | 749,145
Operating | Hearth Products |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 551,803 | 515,159 | 499,604
Operating profit | 91,367 | 83,649 | 69,960
Depreciation and amortization expense | 8,171 | 10,109 | 12,486
Capital expenditures (including capitalized software) | 8,854 | 17,356 | 11,217
Identifiable assets | 352,060 | 347,189 | 340,494
General corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
General corporate | (42,517) | (57,135) | (53,665)
Depreciation and amortization expense | 22,314 | 14,328 | 11,373
Capital expenditures (including capitalized software) | 6,982 | 30,577 | 42,423
Identifiable assets | $ 252,210 | $ 222,594 | $ 240,595

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