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Fair Value Measurements (Change in Fair Value of Contingent Consideration) (Details) - USD ($) $ in Thousands				3 Months Ended		12 Months Ended
	Feb. 17, 2021	Jun. 30, 2020	Oct. 31, 2019	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2021	Mar. 31, 2020
Change in Fair Value of Contingent Consideration [Roll Forward]
Acquisition-related contingent consideration, beginning of the year					$ 23,284	$ 23,284	$ 0
Fair value of contingent consideration upon acquisition						6,430	37
Change in fair value of contingent consideration						5,716	23,247
Settlement of contingent consideration						(28,463)	0
Acquisition-related contingent consideration, end of the year						6,967	$ 23,284
Contingent consideration transferred to equity classification				$ 28,500
Amounts held in escrow						$ 500
Mevo
Change in Fair Value of Contingent Consideration [Roll Forward]
Fair value of contingent consideration (earn-out)	$ 3,430
Maximum additional earn-out	$ 17,000
Streamlabs
Change in Fair Value of Contingent Consideration [Roll Forward]
Change in fair value of contingent consideration					$ 5,700
Fair value of contingent consideration (earn-out)			$ 37
Maximum additional earn-out		$ 29,000	$ 29,000

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

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Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of transfers of financial instrument classified as a liability into (out of) level 3 of the fair value hierarchy.

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