Variable interest entities - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Total assets	$ 17,025,572	$ 16,893,578
Total liabilities and noncontrolling interests	14,600,716	$ 14,150,228
Variable Interest Entity
Total assets	343,772
Total liabilities and noncontrolling interests	$ 157,627