Debt - Convertible Debt (Details)	12 Months Ended
Mar. 31, 2023 USD ($) $ / shares
Debt Instrument [Line Items]
Share price (in dollars per share)	$ 83.78
Value if converted above par \| $	$ 1,000
2015 Senior Convertible Debt
Debt Instrument [Line Items]
Threshold percentage of stock price trigger	130.00%
2017 Senior Convertible Debt
Debt Instrument [Line Items]
Threshold percentage of stock price trigger	130.00%
2017 Junior Convertible Debt
Debt Instrument [Line Items]
Threshold percentage of stock price trigger	130.00%
Senior Convertible Debt \| 2015 Senior Convertible Debt
Debt Instrument [Line Items]
Conversion Rate	34.0221
Approximate Conversion Price (in dollars per share)	$ 29.39
Incremental Share Factor	17.0128
Maximum Conversion Rate	47.6300
Conversion rate, adjusted based on closing stock price	45.0663
Value if converted above par \| $	$ 34,500,000
Senior Convertible Debt \| 2017 Senior Convertible Debt
Debt Instrument [Line Items]
Conversion Rate	21.8163
Approximate Conversion Price (in dollars per share)	$ 45.84
Incremental Share Factor	10.9089
Maximum Conversion Rate	31.0884
Conversion rate, adjusted based on closing stock price	26.7568
Value if converted above par \| $	$ 102,100,000
Senior Convertible Debt \| 2020 Senior Convertible Debt
Debt Instrument [Line Items]
Conversion Rate	10.8048
Approximate Conversion Price (in dollars per share)	$ 92.55
Incremental Share Factor	0
Maximum Conversion Rate	15.1267
Senior Convertible Debt \| 2017 Junior Convertible Debt
Debt Instrument [Line Items]
Conversion rate, adjusted based on closing stock price	27.3417
Junior Convertible Debt \| 2017 Junior Convertible Debt
Debt Instrument [Line Items]
Conversion Rate	22.2061
Approximate Conversion Price (in dollars per share)	$ 45.03
Incremental Share Factor	11.1042
Maximum Conversion Rate	31.0884
Value if converted above par \| $	$ 8,400,000
Common Stock
Debt Instrument [Line Items]
Share price (in dollars per share)	$ 83.78

Debt Instrument, Convertible, Adjusted Conversion Ratio

No definition available.

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- Definition

The amount of shares of common stock that will be added to the conversion ratio if at the time of conversion the applicable stock price of the Company's common stock exceeds the base conversion price, adjusted for dividends paid since the issuance date.

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Convertible, Conversion Ratio Maximum Conversion Rate, Adjusted for Paid Dividends

+ References

No definition available.

+ Details

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
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-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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+ Details

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- Definition

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

+ References

+ Details

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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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- Details

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