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Intangible Assets | 12 Months Ended
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Mar. 31, 2018
Intangible Assets [Abstract] |
Intangible Assets |
Note 12: | Intangible Assets
Intangible assets consisted of the following:
|  | March 31, 2018 |  |  | March 31, 2017 |
|  | Gross Carrying Value |  |  | Accumulated Amortization |  |  | Net Intangible Assets |  |  | Gross Carrying Value |  |  | Accumulated Amortization |  |  | Net Intangible Assets |
Customer relationships |  | $ | 64.2 |  |  | $ | (5.7 | ) |  | $ | 58.5 |  |  | $ | 60.5 |  |  | $ | (1.7 | ) |  | $ | 58.8 |
Trade names |  |  | 60.6 |  |  |  | (10.8 | ) |  |  | 49.8 |  |  |  | 58.4 |  |  |  | (7.2 | ) |  |  | 51.2 |
Acquired technology |  |  | 25.2 |  |  |  | (3.6 | ) |  |  | 21.6 |  |  |  | 27.0 |  |  |  | (2.9 | ) |  |  | 24.1 |
Total intangible assets |  | $ | 150.0 |  |  | $ | (20.1 | ) |  | $ | 129.9 |  |  | $ | 145.9 |  |  | $ | (11.8 | ) |  | $ | 134.1 |
During the fourth quarter of fiscal 2018, the BHVAC segment discontinued its geothermal product line and, as a result, recorded a $1.2 million impairment charge for acquired technology intangible assets it will no longer use. Annual revenue for this discontinued product line was less than $1.0 million. The Company recorded $9.7 million, $4.1 million, and $1.6 million of amortization expense during fiscal 2018, 2017, and 2016, respectively. The Company estimates that it will record approximately $9.0 million of amortization expense in each of the next five fiscal years.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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