Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)	6 Months Ended		12 Months Ended
	Dec. 31, 2019 USD ($)	Jul. 10, 2019 USD ($)	Dec. 31, 2021 USD ($) Segment Merchant shares	Dec. 31, 2020 USD ($)	Jan. 01, 2021 USD ($)	Jul. 11, 2019
Summary Of Significant Accounting Policies [Line Items]
Number of operating segment | Segment			1
Number of merchant represents greater than 10% of volume or profit basis | Merchant			0
Intangible assets, estimated useful life			6 years 9 months 14 days	6 years 11 months 8 days
Impairment of intangible assets				$ 0
Impairment of goodwill	$ 0	$ 0	$ 0	0
Lease, Practical Expedients, Package [true false]			true
Lease, Practical Expedient, Use of Hindsight [true false]			true
Net loss attributable to noncontrolling interest	15,271,043		$ 5,952,390	11,769,683
Debt issuance costs			$ 11,515,304	$ 5,940,600
2026 Notes
Summary Of Significant Accounting Policies [Line Items]
Aggregate principal amount					$ 440,000,000.0
Debt issuance costs					$ 11,400,000
Hawk Parent Holdings LLC
Summary Of Significant Accounting Policies [Line Items]
Noncontrolling interest, ownership percentage			91.90%	89.80%		55.90%
Net loss attributable to noncontrolling interest	15,300,000		$ 6,000,000.0	$ 11,800,000
ASU 2016-02
Summary Of Significant Accounting Policies [Line Items]
Change in accounting principle, ASU, adopted			true
Change in accounting principle, ASU, adoption date			Jan. 01, 2020
Change in accounting principle, ASU, Transition option elected			us-gaap:AccountingStandardsUpdate201602RetrospectiveMember
Incentive Plan
Summary Of Significant Accounting Policies [Line Items]
Common stock reserved for issuance | shares			7,326,728
Incentive Plan | Class A Common Stock
Summary Of Significant Accounting Policies [Line Items]
Common stock reserved for issuance | shares			7,326,728
Selling, General and Administrative Expenses
Summary Of Significant Accounting Policies [Line Items]
Transaction costs	$ 3,900,000	$ 16,200,000	$ 9,300,000	$ 4,200,000
Purchased Software
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			1 year 5 months 23 days	1 year 10 months 6 days
Channel Relationships
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			8 years 7 months 24 days	9 years 7 months 24 days
Client Relationships
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			8 years 4 months 24 days	8 years 7 months 20 days
Trade Names | TriSource, APS, Ventanex, cPayPlus and CPS
Summary Of Significant Accounting Policies [Line Items]
Impairment of intangible assets			$ 2,200,000
Maximum | Software Development Costs
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			3 years
Maximum | Purchased Software
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			3 years
Maximum | Channel Relationships
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			10 years
Maximum | Client Relationships
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			10 years
Volume or Profit Basis | Customer Concentration Risk | Minimum
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage			10.00%