Business Combinations - Additional Information (Details) - USD ($) $ in Thousands							12 Months Ended
	Dec. 17, 2019	Dec. 06, 2019	Oct. 04, 2019	Jan. 31, 2018	Aug. 16, 2017	Apr. 14, 2017	Mar. 31, 2020	Mar. 31, 2019
Topaz
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Oct. 04, 2019
Business acquisition, date of acquisition agreement							Oct. 04, 2019
Business combination, contingent consideration arrangements, change in range of outcomes, contingent consideration, liability, value, high			$ 2,000
Contingent consideration related to acquisitions			1,850				$ 1,900
Settlement of pre-existing liabilities related to pre-acquisition amounts			1,671
Total purchase price			$ 11,177
Topaz | Computer Software, Intangible Asset
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life			6 years
Medfusion
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Dec. 06, 2019
Business acquisition, date of acquisition agreement							Nov. 12, 2019
Settlement of pre-existing liabilities related to pre-acquisition amounts		$ 24
Acquired finite-lived intangible assets, weighted average useful life		7 years 3 months 18 days
Total purchase price		$ 42,777
Medfusion | Computer Software, Intangible Asset
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		6 years
Medfusion | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		10 years
Medfusion | Trade Names
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		5 years
OTTO
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Dec. 17, 2019
Business acquisition, date of acquisition agreement							Dec. 11, 2019
Settlement of pre-existing liabilities related to pre-acquisition amounts	$ 19
Total purchase price	$ 21,960
OTTO | Computer Software, Intangible Asset
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	7 years
Inforth Technologies, LLC
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Jan. 31, 2018
Business acquisition, date of acquisition agreement							Jan. 31, 2018
Business combination, contingent consideration arrangements, change in range of outcomes, contingent consideration, liability, value, high				$ 4,000
Contingent consideration related to acquisitions							$ 0	$ 1,000
Settlement of pre-existing liabilities related to pre-acquisition amounts				337
Total purchase price				4,337
Fair value measurement with unobservable inputs reconciliation recurring basis liability acquisition				$ 0
Inforth Technologies, LLC | Computer Software, Intangible Asset
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life				5 years
EagleDream Health
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Aug. 16, 2017
Business acquisition, date of acquisition agreement							Jul. 31, 2017
Acquired finite-lived intangible assets, weighted average useful life					5 years 1 month 6 days
Total purchase price					$ 25,609
EagleDream Health | Computer Software, Intangible Asset
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life					5 years
EagleDream Health | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life					8 years
Entrada
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Apr. 14, 2017
Business acquisition, date of acquisition agreement							Apr. 11, 2017
Acquired finite-lived intangible assets, weighted average useful life						6 years 1 month 6 days
Total purchase price						$ 33,958
Entrada | Computer Software, Intangible Asset
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life						5 years
Entrada | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life						10 years
Entrada | Trade Names
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life						5 years