Document And Entity Information
Sep. 22, 2023
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 22, 2023
Entity Registrant Name KLDiscovery Inc.
Entity Central Index Key 0001752474
Entity Emerging Growth Company true
Securities Act File Number 001-38789
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 61-1898603
Entity Address, Address Line One 9023 Columbine Road
Entity Address, City or Town Eden Prairie
Entity Address, State or Province MN
Entity Address, Postal Zip Code 55347
City Area Code 703
Local Phone Number 288-3380
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Ex Transition Period false
Title of 12(b) Security N/A
No Trading Symbol Flag true
Security Exchange Name NONE