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Revenues (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Contract liability, revenue recognized	$ 49,800	$ 46,200	$ 122,700	$ 112,700
Revenue, remaining performance obligation	$ 27,500		$ 27,500
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, percent	34.00%		34.00%
Remaining performance obligation, period	6 months		6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, percent	65.00%		65.00%
Remaining performance obligation, period	1 year		1 year
Fiscal 2022 Acquisitions
Disaggregation of Revenue [Line Items]
Deferred revenue	$ 19,274		$ 19,274
Fiscal 2021 Acquisitions
Disaggregation of Revenue [Line Items]
Deferred revenue		$ 7,048		$ 7,048	$ 9,500

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Amount of deferred revenue expected to be recognized as such within one year or the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

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+ References

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-Publisher FASB
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+ References

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