Stock-Based Compensation - Incentive Compensation Plans (Details)	6 Months Ended
Aug. 31, 2019 installment shares
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) \| shares	880,000
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) \| shares	821,000
The 2012 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares authorized for issuance (in shares) \| shares	43,200,000
The 2012 Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period commencement (in years)	1 year
The 2012 Plan [Member] \| Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	4 years
2018 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate share reserve (in shares) \| shares	4,600,000
Granted (in shares) \| shares	0
The 2012 and 2018 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares authorized for issuance (in shares) \| shares	47,800,000
The 2012 and 2018 Plan [Member] \| Employee Stock Option Issued Since May 10, 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period commencement (in years)	1 year
Minimum [Member] \| The 2012 Plan [Member] \| Employee Stock Option Issued Since May 10, 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, number of equal annual installments \| installment	3
Minimum [Member] \| The 2012 Plan [Member] \| Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years
Minimum [Member] \| The 2012 and 2018 Plan [Member] \| Employee Stock Option Issued Since May 10, 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, number of equal annual installments \| installment	3
Minimum [Member] \| The 2012 and 2018 Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, number of equal annual installments \| installment	5
Vesting period commencement (in years)	1 year
Maximum [Member] \| The 2012 Plan [Member] \| Employee Stock Option Issued Since May 10, 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, number of equal annual installments \| installment	5
Maximum [Member] \| The 2012 and 2018 Plan [Member] \| Employee Stock Option Issued Since May 10, 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, number of equal annual installments \| installment	5
Maximum [Member] \| The 2012 and 2018 Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, number of equal annual installments \| installment	7
Vesting period commencement (in years)	3 years
Maximum [Member] \| The 2012 and 2018 Plan [Member] \| Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	4 years

Share-based Compensation Arrangement by Share-based Payment Award, Vesting Period, Number of Equal Annual Installments

No definition available.

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, 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 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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