Credit Facility and Other Long Term Debt - Credit Facility (Details)	6 Months Ended
Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)
Debt Instrument [Line Items]
Outstanding under credit facility	$ 680,919,000	$ 680,919,000
LIBOR \| Minimum
Debt Instrument [Line Items]
Variable rate (as percent)	1.00%
LIBOR \| Maximum
Debt Instrument [Line Items]
Variable rate (as percent)	1.75%
Base Rate \| Minimum
Debt Instrument [Line Items]
Variable rate (as percent)	0.00%
Base Rate \| Maximum
Debt Instrument [Line Items]
Variable rate (as percent)	0.75%
Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 50,000,000
Letters of credit outstanding	4,500,000	4,500,000
Credit Agreement
Debt Instrument [Line Items]
Maximum borrowing capacity	300,000,000
Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	1,100,000,000
Outstanding under credit facility	$ 0	$ 0
Covenant, consolidated EBITDA to consolidated interest expense ratio, greater than or equal	3.50
Debt, leverage covenant, consolidated total indebtedness to consolidated EBITDA ratio less than or equal	3.25
Commitment fee percentage	0.15%

Debt Covenant, Consolidated EBITDA to Consolidated Interest Expense Ratio, Greater or Equal, III

No definition available.

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- Definition

Debt Instrument, Leverage Covenant, Consolidated Total Indebtedness to Consolidated EBITDA Ratio Less than or Equal

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Details

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- Details

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- Details

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Namespace Prefix:
Data Type:	na
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- Details

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