v3.19.3.a.u2
COVER PAGE - USD ($)
12 Months Ended
Dec. 31, 2019
Jan. 28, 2020
Jun. 30, 2019
Cover page.      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Transition Report false    
Entity File Number 001-10960    
Entity Registrant Name FIRSTCASH, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 75-2237318    
Entity Address, Address Line One 1600 West 7th Street    
Entity Address, City or Town Fort Worth    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 76102    
City Area Code 817    
Local Phone Number 335-1100    
Title of 12(b) Security Common Stock, par value $.01 per share    
Trading Symbol FCFS    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
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    
Entity Shell Company false    
Entity Public Float     $ 3,102,000,000
Entity Common Stock, Shares Outstanding   41,997,062  
Entity Central Index Key 0000840489    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false