Summary of Significant Accounting Policies - Additional information (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024 USD ($) Segment	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Nov. 30, 2021 USD ($)	Jun. 30, 2021
Accounting Policies [Line Items]
Selling, general and administrative	$ 59,890	$ 47,451
Other current liabilities	17,832		$ 11,839
Net income	(7,955)	591
Liabilities	723,014		661,499
Income tax benefit	$ 9,018	(1,102)
Number of operating segments | Segment	1
Number of reportable segments | Segment	1
Cash and cash equivalents	$ 66,979		54,224
Cumulative translation adjustment gain (loss)	(5,100)		(2,900)
Sales credits and reserves	700		1,200
Allowance for expected credit losses	2,933	$ 2,473	2,816	$ 2,304
Percentage of cloud-hosted platform revenue processed						98.00%
Percentage of core platform revenue processed		77.00%
Outside US
Accounting Policies [Line Items]
Cash	23,400		19,300
AUSTRALIA
Accounting Policies [Line Items]
Cash	6,700		6,200
INDIA
Accounting Policies [Line Items]
Cash	4,000		3,200
EBI
Accounting Policies [Line Items]
Contingent consideration					$ 1,500
Revision of Prior Period, Error Correction, Adjustment
Accounting Policies [Line Items]
Selling, general and administrative	4,000
Other current liabilities	4,000
Net income			(2,000)	(2,000)
Liabilities			4,000	$ 2,000
Income tax benefit	700
Revision of Prior Period, Error Correction, Adjustment | EBI
Accounting Policies [Line Items]
Contingent consideration	$ 4,000		$ 4,000