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The amount of identifiable intangible assets recognized as of the acquisition date.

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Business Combinations - Purchase price allocation (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Assets and Liabilities:
Goodwill	$ 296,493	$ 279,543	$ 297,251
Weighted Average Useful Life at Aquisition	10 years 6 months	12 years 10 months 24 days
Trademarks
Assets and Liabilities:
Weighted Average Useful Life at Aquisition	2 years	2 years
Customer Relationships
Assets and Liabilities:
Weighted Average Useful Life at Aquisition	10 years 7 months 6 days	13 years
Fiscal 2020 aquisitions
Consideration Transferred
Cash paid at closing	$ 29,624
Deferred consideration payable	10,343
Fair value of contingent consideration	24,964
Fair value of consideration	64,931
Less: Cash acquired	(462)
Total purchase price, net of cash acquired	64,469
Assets and Liabilities:
Cash and cash equivalents	462
Goodwill	27,316
Other net	(653)
Total purchase price	64,931
Fiscal 2020 aquisitions \| Customer Relationships
Assets and Liabilities:
Intangible assets	$ 37,806
Fiscal 2020 aquisitions \| Customer Relationships \| Minimum
Assets and Liabilities:
Weighted Average Useful Life at Aquisition	5 years
Fiscal 2020 aquisitions \| Customer Relationships \| Maximum
Assets and Liabilities:
Weighted Average Useful Life at Aquisition	7 years