Business Combinations - Additional information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) Number	Dec. 31, 2023 USD ($)
Goodwill	$ 9,100
Other intangible assets	200
Fixed assets	400
Other non-current assets	$ 83,074	$ 82,165
Maternal Fetal Medicine Practice [Member]
Number of Maternal Fetal Medicine Practices Acquired | Number	1
Business acquisition total consideration	$ 9,700
Business acquisition consideration paid in cash	6,500
Business combination consideration identifiable as current and long term liabilities	$ 3,200