Annual report pursuant to Section 13 and 15(d)

ASSET ACQUISITIONS, ASSET CONTRIBUTIONS, AND BUSINESS COMBINATIONS - Asset Assignments and Contributions Narrative (Details)

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ASSET ACQUISITIONS, ASSET CONTRIBUTIONS, AND BUSINESS COMBINATIONS - Asset Assignments and Contributions Narrative (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2019
Oct. 31, 2019
agreement
Feb. 28, 2019
USD ($)
Dec. 31, 2020
USD ($)
Mar. 31, 2020
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Business Acquisition [Line Items]              
Number of reseller agreements | agreement   2          
Reseller arrangement, cash consideration paid           $ 0  
Reseller arrangement, cash consideration received           0  
Reseller arrangement period         5 years    
Accumulated amortization       $ 148,708,000   148,708,000 $ 122,049,000
Sellers eligible amount to receive     $ 4,500,000        
Redeemable noncontrolling interest, equity, preferred, annual preferred yield percent     6.00%        
Priority Hospitality Technology, LLC              
Business Acquisition [Line Items]              
Net income attributable to noncontrolling interest       250,000      
Merchant Portfolio              
Business Acquisition [Line Items]              
Accumulated costs and estimated remaining consideration, additions           6,200,000  
Accumulated costs and estimated remaining consideration       11,100,000   11,100,000 1,100,000
Accumulated amortization       $ 2,800,000   $ 2,800,000 $ 100,000
Useful Life           3 years 6 months  
Chief Executive Officer And Chairman              
Business Acquisition [Line Items]              
Percentage of eTab owned by chief executive office and chairman prior to transaction 80.00%            
Percentage of PHT preferred stock owned by president, chief executive officer and chairman     83.30%