Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets - Other Intangible Assets (Details)

v3.20.4
Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Sep. 30, 2020
Other Intangible Assets [Abstract]    
Carrying Amount $ 583,390 $ 579,357
Accumulated Amortization (262,408) (245,859)
Net 320,982 333,498
Trade Names Not Subject to Amortization    
Other Intangible Assets [Abstract]    
Carrying Amount 30,540 30,540
Net 30,540 30,540
Definite-lived trade names    
Other Intangible Assets [Abstract]    
Carrying Amount 149,094 148,867
Accumulated Amortization (72,658) (64,462)
Net 76,436 84,405
Customer relationships    
Other Intangible Assets [Abstract]    
Carrying Amount 382,733 379,246
Accumulated Amortization (174,811) (166,892)
Net 207,922 212,354
Copyrights/patents/other    
Other Intangible Assets [Abstract]    
Carrying Amount 21,023 20,704
Accumulated Amortization (14,939) (14,505)
Net $ 6,084 $ 6,199