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Cancellation Reserves (Schedule Of Cancellation Reserves Accrual) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Nov. 30, 2014 | Nov. 30, 2013 | Nov. 30, 2014 | Nov. 30, 2013
Cancellation Reserves [Abstract] |  |  |  |
Balance as of beginning of period | $ 86.0 us-gaap_ValuationAllowancesAndReservesBalance | $ 34.0 us-gaap_ValuationAllowancesAndReservesBalance | $ 72.5 us-gaap_ValuationAllowancesAndReservesBalance | $ 32.7 us-gaap_ValuationAllowancesAndReservesBalance
Cancellations | (12.4)us-gaap_ValuationAllowancesAndReservesDeductions | (10.2)us-gaap_ValuationAllowancesAndReservesDeductions | (37.4)us-gaap_ValuationAllowancesAndReservesDeductions | (27.2)us-gaap_ValuationAllowancesAndReservesDeductions
Provision for future cancellations | 15.3 us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense | 16.9 us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense | 53.8 us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense | 35.2 us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense
Balance as of end of period | $ 88.9 us-gaap_ValuationAllowancesAndReservesBalance | $ 40.7 us-gaap_ValuationAllowancesAndReservesBalance | $ 88.9 us-gaap_ValuationAllowancesAndReservesBalance | $ 40.7 us-gaap_ValuationAllowancesAndReservesBalance

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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