Document and Entity Information - shares	3 Months Ended
	Jun. 30, 2021	Jul. 27, 2021
Cover [Abstract]
Entity Registrant Name	NEXTGEN HEALTHCARE, INC.
Trading Symbol	NXGN
Entity Central Index Key	0000708818
Document Type	10-Q
Document Period End Date	Jun. 30, 2021
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Entity File Number	001-12537
Entity Tax Identification Number	95-2888568
Entity Address, Address Line One	3525 Piedmont Rd.
Entity Address, Address Line Two	NE
Entity Address, Address Line Three	Building 6, Suite 700
Entity Address, City or Town	Atlanta
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30305
City Area Code	(404)
Local Phone Number	467-1500
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common Stock, $0.01 Par Value
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	CA
Document Quarterly Report	true
Document Transition Report	false
Entity Common Stock, Shares Outstanding		67,265,545