Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Mar. 31, 2020	Mar. 31, 2019	Sep. 30, 2020
Goodwill [Roll Forward]
Goodwill at the beginning of year		$ 398,292		$ 398,292
Increase in goodwill related to acquisitions	$ 14,210		$ 99,344
Decrease in goodwill related to divestitures			(4,939)	(4,387)
Decrease in goodwill related to impairments		$ (13,600)	$ 0	(13,632)
Goodwill at the end of the period	$ 394,483			$ 394,483

Goodwill, Written Off Due To Discontinued Operations

No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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