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Revenue and Related Matters -Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Contract asset	$ 0		$ 0
Contract with customer, liability, revenue recognized	5,500,000	$ 6,700,000
Revenue recognized due to termination of contract		2,500,000
Revenue, remaining performance obligation, amount	38,600,000
Commissions
Disaggregation of Revenue [Line Items]
Amortized	800,000	600,000
Capitalized contract cost, impairment loss	0	0
Implementation Costs
Disaggregation of Revenue [Line Items]
Amortized	$ 800,000	$ 900,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, percentage	95.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	36 months