Condensed Financial Information (Parent Company Only) - Schedule of Condensed Statements of Operations Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues:
Total revenues	$ 2,703,561	$ 1,823,630	$ 1,434,159
Expenses:
Selling, general, and administrative expenses	371,374	307,433	295,646
Total expenses	2,805,116	1,951,447	1,562,798
Loss from operations	(101,555)	(127,817)	(128,639)
Other expenses:
Interest expense	23,547	21,231	18,289
Total other expenses	(26,495)	(20,378)	(20,661)
Loss before income taxes	(128,050)	(148,195)	(149,300)
Provision for income tax expense (benefit)	21	(22)	339
Net loss	(128,071)	(148,173)	(149,639)
Net loss attributable to noncontrolling interest	36	156	92
Net loss attributable to Alignment Healthcare, Inc.	(128,035)	(148,017)	(149,547)
Parent Company
Revenues:
Total revenues	0	0	0
Expenses:
Selling, general, and administrative expenses	443	488	438
Total expenses	443	488	438
Loss from operations	(443)	(488)	(438)
Other expenses:
Interest expense	1,700	0	0
Total other expenses	(1,700)	0	0
Loss before income taxes	(2,143)	(488)	(438)
Provision for income tax expense (benefit)	0	0	0
Net loss of Parent Company	(2,143)	(488)	(438)
Subsidiary's net loss	(125,928)	(147,685)	(149,201)
Net loss	(128,071)	(148,173)	(149,639)
Net loss attributable to noncontrolling interest	36	156	92
Net loss attributable to Alignment Healthcare, Inc.	$ (128,035)	$ (148,017)	$ (149,547)