SHARE-BASED COMPENSATION - Equity Awards With Market Conditions (Details) - Share Bonus Awards with Market Conditions	12 Months Ended
Mar. 31, 2020 $ / shares shares
Share-based compensation
Targeted number of awards as of March 31, 2020 (in shares)	3,315,646
Maximum
Share-based compensation
Range of shares that may be issued (in shares)	6,631,292
Fiscal 2020
Share-based compensation
Targeted number of awards as of March 31, 2020 (in shares)	1,721,031
Average grant date fair value (per share) \| $ / shares	$ 11.92
Fiscal 2020 \| Minimum
Share-based compensation
Range of shares that may be issued (in shares)	0
Fiscal 2020 \| Maximum
Share-based compensation
Range of shares that may be issued (in shares)	3,442,062
Fiscal 2019
Share-based compensation
Targeted number of awards as of March 31, 2020 (in shares)	1,103,198
Average grant date fair value (per share) \| $ / shares	$ 14.00
Fiscal 2019 \| Minimum
Share-based compensation
Range of shares that may be issued (in shares)	0
Fiscal 2019 \| Maximum
Share-based compensation
Range of shares that may be issued (in shares)	2,206,396
Fiscal 2018
Share-based compensation
Targeted number of awards as of March 31, 2020 (in shares)	491,417
Average grant date fair value (per share) \| $ / shares	$ 20.25
Fiscal 2018 \| Minimum
Share-based compensation
Range of shares that may be issued (in shares)	0
Fiscal 2018 \| Maximum
Share-based compensation
Range of shares that may be issued (in shares)	982,834

The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ 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)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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- Definition

Number of shares issued under share-based payment arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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