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v3.10.0.1

Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Mar. 31, 2018
Segment Reporting Information [Abstract] |  |  |
Net sales | $ 566.1 | $ 515.5 |
Gross profit | $ 94.3 | $ 88.5 |
Gross profit (% of sales) | 16.70% | 17.20% |
Operating income (loss) | $ 34.8 | $ 27.6 |
Total assets | 1,562.7 |  | $ 1,573.4
Vehicular Thermal Solutions [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 352.8 | 315.3 |
Commercial and Industrial Solutions [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 183.9 | 171.4 |
Building HVAC Systems [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 45.0 | 43.0 |
Total Segments [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 581.7 | 529.7 |
Operating Segments [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 566.1 | 515.5 |
Gross profit | $ 94.2 | $ 88.6 |
Gross profit (% of sales) | 16.20% | 16.70% |
Operating income (loss) | $ 41.9 | $ 36.7 |
Operating Segments [Member] | Vehicular Thermal Solutions [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 338.3 | 301.4 |
Gross profit | $ 54.0 | $ 50.8 |
Gross profit (% of sales) | 15.30% | 16.10% |
Operating income (loss) | $ 25.5 | $ 22.2 |
Total assets | 746.3 |  | 754.8
Operating Segments [Member] | Commercial and Industrial Solutions [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 183.5 | 171.1 |
Gross profit | $ 28.6 | $ 26.7 |
Gross profit (% of sales) | 15.60% | 15.60% |
Operating income (loss) | $ 13.2 | $ 11.4 |
Total assets | 634.1 |  | 630.2
Operating Segments [Member] | Building HVAC Systems [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 44.3 | 43.0 |
Gross profit | $ 11.6 | $ 11.1 |
Gross profit (% of sales) | 25.90% | 25.90% |
Operating income (loss) | $ 3.2 | $ 3.1 |
Total assets | 92.2 |  | 88.1
Corporate and Eliminations [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | (15.6) | (14.2) |
Gross profit | $ 0.1 | $ (0.1) |
Gross profit (% of sales) | 0.00% | 0.00% |
Operating income (loss) | $ (7.1) | $ (9.1) |
Total assets | 90.1 |  | $ 100.3
Inter-segment Sales [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 15.6 | 14.2 |
Inter-segment Sales [Member] | Vehicular Thermal Solutions [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 14.5 | 13.9 |
Inter-segment Sales [Member] | Commercial and Industrial Solutions [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | 0.4 | 0.3 |
Inter-segment Sales [Member] | Building HVAC Systems [Member] |  |  |
Segment Reporting Information [Abstract] |  |  |
Net sales | $ 0.7 | $ 0.0 |

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