Revenue and Direct Expense (Contract Balances) (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Revenue from Contract with Customer [Abstract] | ||
| Deferred revenue period increase (decrease) | $ 0.7 | $ 4.9 |
| Recognized deferred revenue | $ 35.6 | $ 33.1 |
| X | ||||||||||
- Definition Contract With Customer, Liability, Increase (Decrease) No definition available.
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| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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