Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue Recognition
Net revenues	$ 261,287	$ 237,470
Patient Care
Revenue Recognition
Net revenues	219,818	195,682
Patient Care | Operating Segments
Revenue Recognition
Net revenues	219,818	195,682
Patient Care | Medicare | Operating Segments
Revenue Recognition
Net revenues	65,854	57,335
Patient Care | Medicaid | Operating Segments
Revenue Recognition
Net revenues	39,272	34,048
Patient Care | Commercial insurance / managed care (excluding Medicare and Medicaid managed care) | Operating Segments
Revenue Recognition
Net revenues	77,343	69,663
Patient Care | VA | Operating Segments
Revenue Recognition
Net revenues	21,049	19,764
Patient Care | Private Pay | Operating Segments
Revenue Recognition
Net revenues	16,300	14,872
Products & Services
Revenue Recognition
Net revenues	96,144	88,835
Products & Services | Operating Segments
Revenue Recognition
Net revenues	41,469	41,788
Products & Services | Distribution services, net of intersegment revenue eliminations | Operating Segments
Revenue Recognition
Net revenues	31,390	30,660
Products & Services | Therapeutic solutions | Operating Segments
Revenue Recognition
Net revenues	$ 10,079	$ 11,128