Increase (Decrease) To Number Of Shares Available For Issuance, Percent

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Number Of Recipients

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No definition available.

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- Definition

Share-Based Compensation Arrangement By Share-based Payment Award, Increase (Decrease) To Number of Shares Authorized

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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-Publisher FASB
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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

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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

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- Definition

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).

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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.

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EMPLOYEE BENEFIT PLANS - Share-Based Incentive Plans Narrative (Details)		1 Months Ended	3 Months Ended									9 Months Ended	12 Months Ended
	Oct. 19, 2017 shares	Aug. 31, 2015 director $ / shares shares	Dec. 31, 2020 director $ / shares	Jun. 30, 2020 director $ / shares	Dec. 31, 2019 director $ / shares	Jun. 30, 2019 director $ / shares	Dec. 31, 2018 director $ / shares	Jun. 30, 2018 director $ / shares	Mar. 31, 2018 $ / shares	Jun. 30, 2017 director $ / shares	Jun. 30, 2016 director $ / shares	Dec. 31, 2020 USD ($)	Mar. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2019 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, excess tax benefit amount \| $												$ 7,269,000	$ 13,349,000
Payments related to tax withholding for share-based compensation \| $													17,810,000	$ 31,477,000	$ 1,947,000
Compensation expense — equity and liability classified share awards (Note 14) \| $													62,421,000	64,345,000	$ 56,561,000
Unrecognized compensation cost \| $													$ 92,483,000	$ 80,648,000
Unrecognized compensation cost, period for recognition													2 years	1 year 10 months 24 days
2006 Incentive Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares granted													1,044,741	1,368,079	1,069,436
Granted (in usd per share) \| $ / shares													$ 60.60	$ 47.04	$ 49.32
2016 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, restricted stock		4 years
2016 Incentive Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, restricted stock		4 years
Amended And Restated 2016 Incentive Award Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase (decrease) in number of shares authorized (in shares)	(12,200,000)
Number of shares authorized (in share)	8,000,000.0
Director \| 2016 Incentive Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares granted		48,716
Aggregate shares granted, number of recipients \| director		2	2	4	1	4	1	3		3
Granted (in usd per share) \| $ / shares		$ 21	$ 63.01	$ 60.60	$ 47.21	$ 47.22	$ 42.41	$ 44.50		$ 33.54
April 1, 2018 \| Class B \| Amended And Restated 2016 Incentive Award Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase (decrease) in number of shares authorized (in shares)	6,540,659
Percentage increase (decrease) to number of shares available for issuance	6.00%
April 1, 2018 \| Class A \| Amended And Restated 2016 Incentive Award Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase (decrease) in number of shares authorized (in shares)	6,540,659
Percentage increase (decrease) to number of shares available for issuance	6.00%
Exercise Price 1 \| Director \| 2016 Incentive Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares granted, number of recipients \| director											2
Granted (in usd per share) \| $ / shares											$ 25.21
Exercise Price 2 \| Director \| 2016 Incentive Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares granted, number of recipients \| director											1
Granted (in usd per share) \| $ / shares									$ 23.93