v3.26.3
Organization and Principal Activities - Balances and Amounts of Company's WFOEs and VIEs (Detail) - USD ($)
$ in Thousands
 12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Variable Interest Entities [Line Items]      
Total current assets $ 5,831,755 $ 5,187,702  
Total assets 8,792,020 7,805,499 $ 7,531,673
Total current liabilities 3,889,685 3,289,814  
Total liabilities 4,467,604 3,851,767  
Net revenues 5,661,294 4,900,262 4,313,586
Net income 475,172 371,716 309,591
Net cash provided by operating activities 1,027,080 896,592 1,122,643
Net cash used in investing activities (457,701) (93,428) (1,153,922)
Net cash used in financing activities (380,153) (584,971) (160,438)
Variable interest entities (VIEs) [Member]      
Variable Interest Entities [Line Items]      
Total current assets 3,787,279 3,134,190  
Total non-current assets 2,545,484 2,227,645  
Total assets 6,332,763 5,361,835  
Total current liabilities 3,695,843 3,198,784  
Total non-current liabilities 572,147 543,506  
Total liabilities 4,267,990 3,742,290  
Net revenues 5,643,957 4,888,374 4,280,056
Net income 848,869 674,182 606,139
Net cash provided by operating activities 1,192,498 1,041,249 1,310,909
Net cash used in investing activities (520,147) (546,190) (1,234,725)
Net cash used in financing activities $ (6,791) $ (18,882) $ (16,721)