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Auto Loan Receivables (Past Due Receivables) (Details) - USD ($) $ in Millions | Aug. 31, 2017 | Feb. 28, 2017
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Financing Receivable, Past Due [Line Items] |  |
Total ending managed receivables | $ 11,252.8 | $ 10,681.3
Total past due | $ 385.0 | $ 331.0
Past due receivables as a percentage of total ending managed receivables | 3.40% | 3.10%
Total ending managed receivables, percent |  |
Financing Receivable, Past Due [Line Items] |  |
Item as percent of total ending managed receivables | 100.00% | 100.00%
Thirty One To Sixty Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total past due | $ 239.4 | $ 211.0
Past due receivables as a percentage of total ending managed receivables | 2.10% | 2.00%
Sixty One To Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total past due | $ 115.1 | $ 93.5
Past due receivables as a percentage of total ending managed receivables | 1.00% | 0.90%
Greater Than Ninety Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total past due | $ 30.5 | $ 26.5
Past due receivables as a percentage of total ending managed receivables | 0.30% | 0.20%

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- Definition Recorded Investment in financing receivables that are past due at the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524 + Details
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- Definition Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(3)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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