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v3.19.3.a.u2

Revenue Recognition (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($) unit | Dec. 31, 2018 USD ($) unit | Dec. 31, 2017 USD ($) unit
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 469,333 | $ 433,947 | $ 405,232
Total Units | unit | 26,307,000 | 25,152,000 | 23,381,000
Rooftop Units |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 349,427 | $ 333,105 | $ 317,414
Total Units | unit | 14,448,000 | 15,273,000 | 16,003,000
Condensing Units |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 18,475 | $ 18,282 | $ 19,276
Total Units | unit | 1,738,000 | 2,007,000 | 2,252,000
Air Handlers |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 24,265 | $ 21,905 | $ 22,570
Total Units | unit | 2,372,000 | 2,500,000 | 2,577,000
Outdoor Mechanical Rooms |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 1,643 | $ 2,408 | $ 3,238
Total Units | unit | 33,000 | 38,000 | 64,000
Water Source Heat Pumps |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 25,447 | $ 14,660 | $ 9,911
Total Units | unit | 7,716,000 | 5,334,000 | 2,485,000
Part Sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 33,331 | $ 26,732 | $ 20,756
Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 16,745 | $ 16,855 | $ 12,067

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