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Acquisitions Useful Lives of Acquired Intangibles (Details) - USD ($) $ in Millions | 12 Months Ended
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Feb. 28, 2020 | Feb. 22, 2019 | Feb. 23, 2018
Dealer relationships [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted average useful life | 11 years |  |
Trademarks [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted average useful life | 9 years 11 months |  |
Other Intangible Assets [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted average useful life | 4 years 8 months |  |
AMQ Acquisition Q4 2018 [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  |  | $ 30.1
AMQ Acquisition Q4 2018 [Member] | Dealer relationships [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  |  | 25.5
Weighted average useful life | 11 years |  |
AMQ Acquisition Q4 2018 [Member] | Trademarks [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  |  | 1.3
Weighted average useful life | 9 years |  |
AMQ Acquisition Q4 2018 [Member] | Know-How/Design [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted average useful life | 9 years |  |
AMQ Acquisition Q4 2018 [Member] | Other Intangible Assets [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  |  | $ 3.3
Weighted average useful life | 4 years 7 months |  |
Smith System Q2 FY19 [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | $ 44.1 |
Smith System Q2 FY19 [Member] | Dealer relationships [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | 12.0 |
Weighted average useful life | 11 years |  |
Smith System Q2 FY19 [Member] | Trademarks [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | 12.0 |
Weighted average useful life | 9 years |  |
Smith System Q2 FY19 [Member] | Know-How/Design [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | 16.0 |
Weighted average useful life | 9 years |  |
Smith System Q2 FY19 [Member] | Other Intangible Assets [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | 4.1 |
Weighted average useful life | 11 months |  |
Orangebox Acquisition Q3 2019 [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | 42.2 |
Orangebox Acquisition Q3 2019 [Member] | Dealer relationships [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | 23.0 |
Weighted average useful life | 10 years 9 months |  |
Orangebox Acquisition Q3 2019 [Member] | Trademarks [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | 13.2 |
Weighted average useful life | 9 years |  |
Orangebox Acquisition Q3 2019 [Member] | Know-How/Design [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | 5.0 |
Weighted average useful life | 9 years |  |
Orangebox Acquisition Q3 2019 [Member] | Other Intangible Assets [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived Intangible Assets Acquired |  | $ 1.0 |
Weighted average useful life | 2 months |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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