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Segment Information - Income Statement Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 27, 2018 | Jan. 28, 2017 | Jan. 27, 2018 | Jan. 28, 2017
Segment Information |  |  |  |
Sales | $ 413,638 | $ 389,992 | $ 1,163,922 | $ 1,107,354
Operating income | 33,095 | 33,572 | 83,662 | 89,888
Interest expense | 113 | 562 | 430 | 794
Interest income | 444 | 241 | 1,163 | 679
Income from Continued Dumping and Subsidy Offset Act, net |  | 273 |  | 273
Gain on conversion of investment |  |  | 2,204 |
Other income (expense), net | (1,094) | (52) | (2,475) | (1,783)
Income before income taxes | 32,332 | 33,472 | 84,124 | 88,263
Upholstery Segment |  |  |  |
Segment Information |  |  |  |
Sales | 262,874 | 246,650 | 739,429 | 715,357
Casegoods Segment |  |  |  |
Segment Information |  |  |  |
Sales | 23,887 | 20,499 | 68,821 | 64,651
Retail Segment |  |  |  |
Segment Information |  |  |  |
Sales | 125,815 | 122,121 | 353,068 | 325,206
Corporate and Other, non-segment |  |  |  |
Segment Information |  |  |  |
Sales | 1,062 | 722 | 2,604 | 2,140
Operating Segments | Upholstery Segment |  |  |  |
Segment Information |  |  |  |
Sales | 320,958 | 302,923 | 900,126 | 866,128
Operating income | 31,699 | 35,669 | 88,422 | 104,388
Operating Segments | Casegoods Segment |  |  |  |
Segment Information |  |  |  |
Sales | 27,215 | 23,259 | 80,790 | 74,185
Operating income | 2,792 | 1,593 | 8,833 | 6,587
Operating Segments | Retail Segment |  |  |  |
Segment Information |  |  |  |
Operating income | 7,076 | 6,325 | 12,746 | 11,515
Corporate and Other |  |  |  |
Segment Information |  |  |  |
Operating income | (8,472) | (10,015) | (26,339) | (32,602)
Corporate and Other | Corporate and Other, non-segment |  |  |  |
Segment Information |  |  |  |
Sales | 3,880 | 2,700 | 9,443 | 6,891
Eliminations |  |  |  |
Segment Information |  |  |  |
Sales | (64,230) | (61,011) | (179,505) | (165,056)
Eliminations | Upholstery Segment |  |  |  |
Segment Information |  |  |  |
Sales | (58,084) | (56,273) | (160,697) | (150,771)
Eliminations | Casegoods Segment |  |  |  |
Segment Information |  |  |  |
Sales | (3,328) | (2,760) | (11,969) | (9,534)
Eliminations | Corporate and Other, non-segment |  |  |  |
Segment Information |  |  |  |
Sales | $ (2,818) | $ (1,978) | $ (6,839) | $ (4,751)

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