BUSINESS COMBINATIONS (Details)					1 Months Ended	12 Months Ended
	Sep. 22, 2021 USD ($) installment	Aug. 19, 2021 USD ($)	May 12, 2021 USD ($)	Jan. 25, 2021 USD ($) item	Jan. 31, 2021 USD ($) payment	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Business combinations
Payments For Purchase Commitment Liability						$ 6,424,000	$ 423,000	$ 10,822,000
Number of Operating Segments | segment						1
Increase in settlement value						$ 4,020,000	990,000
Deferred purchase consideration, current							19,824,000
Cash consideration, net							474,000	251,412,000
Other operating expense (income), net
Business combinations
Total transaction cost						4,853,000
LCR
Business combinations
Purchase commitment liability payment	$ 60,038,000
Purchase price	99,062,000
Cash received in the acquisition	1,899,000
Cash paid for Post-closing adjustment	474,000
Aggregate deferred payments	$ 40,000,000
No of Installment of deferred payment | installment	4
Amount per installment of deferred payment	$ 10,000,000
Amount of discount of deferred payments	976,000
Other adjustments	156,000
Fair value of deferred payment, net of discount	$ 39,024,000					0	19,824,000
Interest acquired (as a percent)	100.00%
Cash consideration, net	$ 57,821,000
Measurement Period Adjustments, Capitalized Software	7,700,000
Measurement Period Adjustments, Other Intangibles	6,500,000
Measurement Period Adjustments, Goodwill	11,178,000
Royalties payable written off	252,000
Tellutax
Business combinations
Purchase commitment liability payment				$ 6,100,000
Contingent consideration				$ 2,200,000
Number of potential earnout payments				3	3
Revenue achievement period				30 months	30 months
Maximum limit on earnout payments				$ 0	$ 0
Earn out payment for applicable measurement period				0	$ 0
Tellutax Contingent Consideration				$ 2,200,000		$ 4,900,000	4,800,000
Tellutax | Revenue discount rate
Business combinations
Value of input used to measure capitalized software				28.5
Tellutax | Estimated linear obsolescence factor
Business combinations
Value of input used to measure capitalized software				20
Taxamo
Business combinations
Purchase commitment liability payment			$ 190,153,000
Fair value of acquisition holdbacks			502,000
Fair value of purchase commitment liability		$ 10,034,000	10,034,000
Purchase price			200,689,000
Payments For Purchase Commitment Liability			10,034,000
Number of Operating Segments | segment						1
Cash received in the acquisition			2,662,000
Restricted cash acquired from acquisition			$ 221,000
Holdback							$ 468,000
Percentage of remaining outstanding share of the acquiree		5.00%
Interest acquired (as a percent)		100.00%	95.00%
Additional equity interests acquired			5.00%
Cash consideration, net			$ 187,491,000
Taxamo | Other operating expense (income), net
Business combinations
Transaction costs								$ 4,269,000
Systax - VIE
Business combinations
Purchase commitment liability payment	$ 59,720,000