Acquisitions of Businesses - Additional Information (Details) € in Millions							3 Months Ended				6 Months Ended	12 Months Ended
	Oct. 18, 2021 USD ($)	Oct. 01, 2021 USD ($)	Sep. 07, 2021 USD ($)	Apr. 20, 2021 USD ($)	Apr. 01, 2021 USD ($) shares	Apr. 01, 2021 EUR (€) shares	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Goodwill							$ 671,431,000					$ 672,381,000
Accrued value of earnout related to acquisition							$ 0		$ 1,802,000
Inposia
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Apr. 01, 2021
Acquisition-related costs					$ 1,500,000						$ 1,000,000.0	$ 500,000
Total consideration transferred					37,400,000	€ 31.8	$ 37,427,000
Cash received on net working capital adjustments								$ 200,000
Consideration in cash					$ 12,200,000		$ 14,456,000	$ 14,500,000		$ 2,400,000
Common stock paid at acquisition closing | shares					164,416	164,416
Common stock consideration					$ 23,000.0
Term of releasing shares issued are held in escrow							18 months
Fair value discount rate based on estimated pre-tax cost of debt					4.00%	4.00%
Weighted average amortization period for intangibles					6 years 2 months 12 days	6 years 2 months 12 days
Goodwill					$ 26,500,000
Davo Technologies LLC
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Apr. 20, 2021
Acquisition-related costs				$ 100,000
Total consideration transferred				56,700,000			$ 56,747,000
Consideration in cash				$ 23,500,000			23,818,000		$ 300,000
Weighted average amortization period for intangibles				5 years 4 months 24 days
Goodwill				$ 51,900,000
Acquisition holdbacks with a fair value upon acquisition				2,600,000			2,591,000
Accrued value of earnout related to acquisition				30,300,000			$ 30,338,000
Business combination, additional cash to be paid, as consideration, during eighteen months following acquisition date				$ 2,600,000
3CE Technologies, Inc.
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Sep. 07, 2021
Total consideration transferred			$ 11,200,000
Consideration in cash			9,900,000
Goodwill			7,100,000
Acquisition holdbacks with a fair value upon acquisition			1,300,000
Developed technology, customer relationships, and other intangibles			$ 3,700,000
Track1099 LLC
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Oct. 01, 2021
Acquisition-related costs		$ 100,000
Total consideration transferred		48,800,000					$ 48,804,000
Consideration in cash		35,000,000.0					35,000,000
Goodwill		43,000,000.0
Acquisition holdbacks with a fair value upon acquisition		5,000,000.0					4,984,000
Accrued value of earnout related to acquisition		8,800,000					$ 8,820,000
Additional cash to be paid, as consideration, in twenty seven months		5,000,000.0
Maximum payout earned		12,500,000
Maximum payout earned in each earnout period		$ 6,250,000
Earnout arrangement term		12 months
CrowdReason LLC and CorrelationAdvisors
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition							Oct. 18, 2021
Acquisition-related costs	$ 200,000
Total consideration transferred	36,400,000						$ 36,364,000
Consideration in cash	8,300,000						8,317,000
Goodwill	25,400,000
Acquisition holdbacks with a fair value upon acquisition							1,727,000
Accrued value of earnout related to acquisition	26,300,000						$ 26,320,000
Maximum payout earned	$ 40,000,000.0
Earnout arrangement term	12 months
Additional cash to be paid as fair value of acquisition holdbacks	$ 1,700,000