Segment Information - Schedule of Reportable Segments Reconcile of Segment Information (Details) - Operating Segments - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information [Line Items]
Cost of drugs	$ 2,672,793	$ 2,147,576
Cost of services	260,924	211,545
Other direct costs	197,782	180,639
Segment selling, general, and administrative expenses	279,456	205,840
Segment depreciation and amortization expense	32,282	34,277
Segment EBITDA	235,048	166,806
Products
Segment Reporting Information [Line Items]
Revenues	3,171,349	2,532,171
Services
Segment Reporting Information [Line Items]
Revenues	442,372	345,958
Pharmacy Solutions
Segment Reporting Information [Line Items]
Cost of drugs	2,672,793	2,147,576
Other direct costs	197,782	180,639
Segment selling, general, and administrative expenses	157,034	115,738
Segment depreciation and amortization expense	25,328	27,508
Segment EBITDA	169,068	115,726
Pharmacy Solutions \| Products
Segment Reporting Information [Line Items]
Revenues	3,171,349	2,532,171
Provider Services
Segment Reporting Information [Line Items]
Cost of services	260,924	211,545
Segment selling, general, and administrative expenses	122,422	90,102
Segment depreciation and amortization expense	6,954	6,769
Segment EBITDA	65,980	51,080
Provider Services \| Services
Segment Reporting Information [Line Items]
Revenues	$ 442,372	$ 345,958

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