Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 31, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-39613
Entity Registrant Name	ARRAY TECHNOLOGIES, INC.
Entity Central Index Key	0001820721
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	true
Amendment Description	On April 6, 2022, Array Technologies, Inc. (the “Company”) filed its Annual Report on Form 10-K for the fiscal year ended December 31, 2021 (the “Original Form 10-K”). This Amendment No. 1 (the “Amendment”) amends the Original Form 10-K solely to correct an administrative error in the content of Exhibit 23.1, Consent of Independent Registered Public Accounting Firm (the “Consent”), that resulted in an improper reference to the date of the auditor’s report. A new Exhibit 23.1 with the appropriate corrections is filed as Exhibit 23.1 attached hereto.This Amendment speaks as of the original filing date and does not reflect events occurring after the filing of the Original Form 10-K. No revisions are being made to the Company’s financial statements or any other disclosure contained in the Original Form 10-K. This Amendment is an exhibit-only filing. Except for Exhibit 23.1, this Amendment does not otherwise update any exhibits as originally filed or previously amended.In addition, as required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), new certifications by the Company’s principal executive officer and principal financial officer are filed herewith as exhibits to this Amendment pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act. As no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4, and 5 of the certifications have been omitted. The Company is not including certifications pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) as no financial statements are being filed with this Amendment.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-2747826
Entity Address, Address Line One	3901 Midway Place NE
Entity Address, City or Town	Albuquerque
Entity Address, State or Province	NM
Entity Address, Postal Zip Code	87109
City Area Code	(505)
Local Phone Number	881-7567
Title of 12(b) Security	Common stock, $0.001 par value
Trading Symbol	ARRY
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 1,981,113,685
Entity Common Stock Shares Outstanding		150,173,507
Documents Incorporated by Reference	Portions of the registrant’s definitive proxy statement to be filed with the Securities and Exchange Commission, or SEC, subsequent to the date hereof pursuant to Regulation 14A in connection with the registrant’s 2022 Annual Meeting of Stockholders, are incorporated by reference into Part III of this Annual Report on Form 10-K. We intend to file such proxy statement with the SEC not later than 120 days after the conclusion of the registrant’s fiscal year ended December 31, 2021.
Auditor name	BDO USA, LLP
Auditor location	Austin, Texas
Auditor firm ID	243