Revenue - Narrative (Details) $ in Millions	3 Months Ended
Mar. 31, 2022 USD ($) segment	Mar. 31, 2021 USD ($)
Disaggregation of Revenue [Line Items]
Number of reportable segments \| segment	2
Contract with customer, liability, revenue recognized \| $	$ 2.5	$ 2.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, period	1 year
Remaining performance obligation (as a percent)	84.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, period	1 year
Remaining performance obligation (as a percent)	12.00%
Revenue from Contract with Customer, Product and Service Benchmark \| Revenue Timing of Transfer of Goods or Service \| Transferred over Time
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	96.00%	93.00%
Revenue from Contract with Customer, Product and Service Benchmark \| Revenue Timing of Transfer of Goods or Service \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	4.00%	7.00%
Federal Government \| Revenue from Contract with Customer, Product and Service Benchmark \| Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	95.00%	96.00%
Federal Government \| Accounts Receivable \| Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	72.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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