Quarterly report pursuant to Section 13 or 15(d)

Soft Dollar Arrangements - Additional Information (Detail)

v3.21.2
Soft Dollar Arrangements - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Soft Dollar Arrangements [Abstract]        
Soft dollar credits $ 238 $ 263 $ 398 $ 690