Description of Business and Summary of Significant Accounting Policies - Additional Information (Details)
 3 Months Ended 12 Months Ended
Sep. 30, 2020
USD ($)
Dec. 31, 2021
USD ($)
product_service_group
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2009
USD ($)
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Impairment of intangible asset   $ 0 $ 6,168,000 $ 0  
Operating revenue:   994,938,000 625,609,000 580,615,000  
Total intangibles   140,700,000 134,806,000    
Amortization expense, acquired intangible assets   $ 10,400,000 9,500,000 10,200,000  
Number of product/service channels | product_service_group   3      
Customer relationships | E-Z Data          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Indefinite-lived intangible assets acquired         $ 14,200,000
EbixHealth JV | IHC          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Impairment of intangible asset     6,200,000    
Customer relationships          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Total intangibles   $ 102,446,000 $ 96,616,000    
Customer relationships | Minimum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   4 years      
Customer relationships | Maximum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   20 years      
Customer relationships | E-Z Data          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life 15 years        
Total intangibles $ 14,200,000        
Customer relationships | EbixHealth JV          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   10 years      
Customer relationships | EbixHealth JV | IHC          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life     10 years    
Amortization expense, acquired intangible assets   $ 500,000      
Developed technology          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Total intangibles   $ 20,234,000 $ 19,867,000    
Developed technology | Minimum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   3 years      
Developed technology | Maximum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   15 years      
Airport contracts          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Total intangibles   $ 4,441,000 4,523,000    
Airport contracts | Maximum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   9 years      
Store networks          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Total intangibles   $ 2,396,000 2,440,000    
Store networks | Maximum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   5 years      
Dealer networks          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Total intangibles   $ 6,534,000 6,653,000    
Dealer networks | Minimum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   15 years      
Dealer networks | Maximum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   20 years      
Brand          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Total intangibles   $ 880,000 896,000    
Brand | Minimum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   3 years      
Brand | Maximum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   15 years      
Trademarks          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Total intangibles   $ 2,696,000 2,700,000    
Trademarks | Minimum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   3 years      
Trademarks | Maximum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   15 years      
Non-compete agreements          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Total intangibles   $ 721,000 759,000    
Non-compete agreements | Minimum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   5 years      
Non-compete agreements | Maximum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   7 years      
Database          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Total intangibles   $ 212,000 212,000    
Database | Maximum          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Finite-lived intangible asset, useful life   10 years      
India          
Finite-Lived and Indefinite Lived Intangible Lived Assets [Line Items]          
Operating revenue:   $ 755,543,000 $ 378,660,000 $ 300,678,000