Consideration in preferred stock received.

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- Definition

Convertible loan credit losses.

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No definition available.

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- Definition

Future contingent milestone payments.

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No definition available.

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- Definition

Milestone achievement period.

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No definition available.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

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- Definition

Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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- Definition

Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

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No definition available.

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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.

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No definition available.

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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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Fair Value Measurements and Investments - Additional Information (Detail) - USD ($)	Oct. 01, 2020	Apr. 30, 2018	Mar. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Future milestone payments			$ 30,000.0
Spinal Kinetics [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Milestone achievement period		5 years
Consideration transferred			36,900,000
Spinal Kinetics [Member] \| Other Current Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Consideration transferred			15,000,000.0
Spinal Kinetics [Member] \| Other Long-term Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Consideration transferred			21,900,000
Maximum [Member] \| Spinal Kinetics [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Future milestone payments		$ 60,000,000.0
US Food And Drug Administration [Member] \| Spinal Kinetics [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Future milestone payments		15,000,000.0
Revenue Milestone [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Future milestone payments			15,000.0
Revenue Milestone [Member] \| Spinal Kinetics [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Future milestone payments		$ 45,000,000.0
Neo Medical [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Convertible loans	$ 4,600,000
Convertible loans interest rate	8.00%
Maturity date	Oct. 01, 2024
Carrying value of investment			5,000,000.0
Convertible loan credit losses			$ 0
Neo Medical [Member] \| Preferred Stock
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amount of Preferred stock consideration	$ 5,000,000.0