Annual report pursuant to Section 13 and 15(d)

Other Balance Sheet Components - Schedule of Changes in Accumulated Other Comprehensive Loss by Category (Details)

v3.23.3
Other Balance Sheet Components - Schedule of Changes in Accumulated Other Comprehensive Loss by Category (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Increase (Decrease) in Shareholders' Equity      
Beginning balance $ 1,549,371 $ 1,480,329 $ 1,241,819
Other comprehensive income/(loss) before reclassifications 15,067 5,500 2,222
Amounts reclassified from accumulated other comprehensive income/(loss) (8,721) 447 508
Net current period other comprehensive income/(loss) 6,346 5,947 2,730
Ending balance 1,667,835 1,549,371 1,480,329
Foreign currency translation adjustment      
Increase (Decrease) in Shareholders' Equity      
Beginning balance (57,109) (39,605) (42,638)
Other comprehensive income/(loss) before reclassifications 6,509 (17,504) 3,033
Amounts reclassified from accumulated other comprehensive income/(loss) 116 0 0
Net current period other comprehensive income/(loss) 6,625 (17,504) 3,033
Ending balance (50,484) (57,109) (39,605)
Net unrealized (loss)/gain on derivatives, net of tax      
Increase (Decrease) in Shareholders' Equity      
Beginning balance 23,148 (303) 0
Other comprehensive income/(loss) before reclassifications 8,558 23,004 (811)
Amounts reclassified from accumulated other comprehensive income/(loss) (8,837) 447 508
Net current period other comprehensive income/(loss) (279) 23,451 (303)
Ending balance 22,869 23,148 (303)
Total      
Increase (Decrease) in Shareholders' Equity      
Beginning balance (33,961) (39,908) (42,638)
Ending balance $ (27,615) $ (33,961) $ (39,908)