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Fair value of financial instruments Fair Value of Financial Instruments (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)
Fair Value Disclosures [Abstract]
Potential Increase Decrease In Fair Value Of Noncontrolling Interests Due To Change In Weighted Average EBITDA Multiple	$ 170,000

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- Definition

Potential increase decrease In fair value of Noncontrolling interests related to contractual Put obligations due to the change In Weighted Average EBITDA multiple.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration