Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Accumulated Other Comprehensive Loss (Details)

v3.23.1
Fair Value Measurements - Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
 6 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]            
Balance as of March 31, 2023 $ 1,601,722 $ 1,581,007 $ 1,549,371 $ 1,554,216 $ 1,528,426 $ 1,480,329
Other comprehensive income before reclassifications 3,873          
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax (3,215)          
Foreign currency translation adjustment            
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]            
Balance as of March 31, 2023 (48,108)   (57,109)      
Other comprehensive income before reclassifications 8,885          
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 116          
Net current period other comprehensive losses 9,001          
Net unrealized gain on derivatives, net of tax            
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]            
Balance as of March 31, 2023 14,805   23,148      
Other comprehensive income before reclassifications (5,012)          
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax (3,331)          
Net current period other comprehensive losses (8,343)          
Total            
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]            
Balance as of March 31, 2023 (33,303)   $ (33,961)      
Net current period other comprehensive losses $ 658