Ryan Specialty Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation - Additional Information (Detail) - $ / shares	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Dec. 31, 2022
Common Stock [Member] \| New LLC [Member]
Own controlling interest							45.40%
Common Class A [Member]
Common stock, par value	$ 0.001						$ 0.001	$ 0.001
Common Class A [Member] \| Common Stock [Member]
Stock issued during period shares	426,647	104,196	3,468	401,463	60,511	91,743