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Fair Value Measurements - Narrative (Details)		3 Months Ended			6 Months Ended
	May 19, 2021 USD ($) milestone	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Mar. 31, 2022 USD ($)	Feb. 17, 2021 USD ($)	Jan. 04, 2021 USD ($) milestone
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of contingent consideration upon acquisition					$ 1,142,000	$ 9,973,000
Payment of contingent consideration for business acquisition					5,954,000	0
Equity method investments		$ 22,900,000			22,900,000		$ 40,200,000
Impairment of non-marketable investments		21,400,000		$ 0	21,400,000	0
Equity investments included in other assets		10,900,000			10,900,000		2,900,000
Unrealized gain, before tax					6,900,000
Impairment of long-lived assets held-for-use		0		0	0	0
Impairment of non-financial assets		0		$ 0	0	$ 0
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments for deferred compensation plan		27,969,000			$ 27,969,000		$ 28,431,000
Small Technology Acquisition
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Future potential earn-out payments	$ 10,000,000
Number of technical development milestones | milestone	3
Fair value of contingent consideration upon acquisition	$ 10,000,000
Small Technology Acquisition | Second Technical Development Milestone
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payment of contingent consideration for business acquisition		4,000,000
Small Technology Acquisition | First Technical Development Milestone
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payment of contingent consideration for business acquisition			$ 900,000
Mevo
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Future potential earn-out payments								$ 17,000,000
Contingent consideration								$ 3,400,000
Small Technology Acquisition Two
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Future potential earn-out payments									$ 3,000,000
Number of technical development milestones | milestone									2
Small Technology Acquisition Two | First Technical Development Milestone
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payment of contingent consideration for business acquisition		$ 2,000,000

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