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Operating Segment Data - Revenues from Geographic Location Outside Domestic Country (Detail) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]                
Revenues $ 536,612 $ 464,975 $ 431,525 $ 408,556 $ 421,609 $ 364,948 $ 286,218 $ 286,792