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
-Topic 280
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Data Type:	dtr-types:percentItemType
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Period Type:	duration

10-K Segment Information Segment Information (Narrative) (Details) - segment	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Number of Reportable Segments	4	3
Revenue Benchmark \| Customer Concentration Risk \| Health Benefits Segment
Segment Reporting Information [Line Items]
Concentration Risk, Percentage		28.00%	28.00%	28.00%