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v3.6.0.2

Reportable Segment Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales | $ 462,057 | $ 464,272 | $ 471,439 | $ 447,676 | $ 543,711 | $ 531,350 | $ 514,831 | $ 437,597 | $ 527,477 | $ 491,697 | $ 486,021 | $ 358,120 | $ 1,845,444 | $ 2,027,489 | $ 1,863,315
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 36,769 | 37,998 | 38,829
Income (Loss) from operations |  |  |  |  |  |  |  |  |  |  |  |  | 202,532 | 180,369 | 122,386
Assets | 898,733 |  |  |  | 949,670 |  |  |  | 927,446 |  |  |  | 898,733 | 949,670 | 927,446
Reconciling items to net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | (15,663) | (19,548) | (22,165)
Other, net |  |  |  |  |  |  |  |  |  |  |  |  | (1,452) | 2,490 | (1,759)
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  | 65,984 | 59,022 | 37,532
Net income | 23,000 | $ 33,378 | $ 35,532 | $ 27,523 | 33,286 | $ 31,880 | $ 28,649 | $ 10,474 | 19,088 | $ 18,307 | $ 16,239 | $ 7,296 | 119,433 | 104,289 | 60,930
External Customers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | 1,845,444 | 2,027,489 | 1,863,315
Intersegment Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Commercial Trailer Products |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | 1,506,110 | 1,582,241 | 1,380,623
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 12,345 | 12,674 | 12,331
Income (Loss) from operations |  |  |  |  |  |  |  |  |  |  |  |  | 212,351 | 159,385 | 82,290
Assets | 312,848 |  |  |  | 336,235 |  |  |  | 342,015 |  |  |  | 312,848 | 336,235 | 342,015
Commercial Trailer Products | External Customers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | 1,506,070 | 1,582,019 | 1,380,195
Commercial Trailer Products | Intersegment Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | 40 | 222 | 428
Diversified Products |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | 352,404 | 456,927 | 494,992
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 22,970 | 23,888 | 24,868
Income (Loss) from operations |  |  |  |  |  |  |  |  |  |  |  |  | 24,595 | 51,078 | 57,635
Assets | 370,338 |  |  |  | 397,892 |  |  |  | 422,322 |  |  |  | 370,338 | 397,892 | 422,322
Diversified Products | External Customers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | 339,374 | 445,470 | 483,120
Diversified Products | Intersegment Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | 13,030 | 11,457 | 11,872
Corporate and Eliminations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | (13,070) | (11,679) | (12,300)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 1,454 | 1,436 | 1,630
Income (Loss) from operations |  |  |  |  |  |  |  |  |  |  |  |  | (34,414) | (30,094) | (17,539)
Assets | $ 215,547 |  |  |  | $ 215,543 |  |  |  | $ 163,109 |  |  |  | 215,547 | 215,543 | 163,109
Corporate and Eliminations | External Customers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Corporate and Eliminations | Intersegment Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Net Sales |  |  |  |  |  |  |  |  |  |  |  |  | $ (13,070) | $ (11,679) | $ (12,300)

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