| Goodwill Attributable to Each Segment | 
 A summary of the carrying amount of goodwill attributable to each segment as well as the changes in such amounts are as follows: 
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SGK Brand Solutions | 
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Memorialization | 
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Industrial Technologies | 
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Consolidated | 
 
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Net goodwill at September 30, 2021  | 
$ | 
314,850  | 
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$ | 
366,360  | 
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$ | 
92,577  | 
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$ | 
773,787  | 
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| Translation and other adjustments | 
(1,422) | 
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(479) | 
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97  | 
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(1,804) | 
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Net goodwill at December 31, 2021  | 
$ | 
313,428  | 
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$ | 
365,881  | 
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$ | 
92,674  | 
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$ | 
771,983  | 
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| Other Intangible Assets | 
 The following tables summarize the carrying amounts and related accumulated amortization for intangible assets as of December 31, 2021 and September 30, 2021, respectively. 
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Carrying Amount | 
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Accumulated Amortization | 
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Net | 
 
| December 31, 2021: | 
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| Indefinite-lived trade names | 
$ | 
30,540  | 
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$ | 
—  | 
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$ | 
30,540  | 
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| Definite-lived trade names | 
148,794  | 
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(114,714) | 
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34,080  | 
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| Customer relationships | 
388,112  | 
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(220,667) | 
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167,445  | 
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| Copyrights/patents/other | 
23,485  | 
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(15,826) | 
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7,659  | 
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|   | 
$ | 
590,931  | 
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$ | 
(351,207) | 
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$ | 
239,724  | 
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September 30, 2021:
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| Indefinite-lived trade names | 
$ | 
30,540  | 
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$ | 
—  | 
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$ | 
30,540  | 
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| Definite-lived trade names | 
148,867  | 
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(104,211) | 
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44,656  | 
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| Customer relationships | 
388,699  | 
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(210,361) | 
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178,338  | 
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| Copyrights/patents/other | 
23,584  | 
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(15,576) | 
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8,008  | 
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$ | 
591,690  | 
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$ | 
(330,148) | 
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$ | 
261,542  | 
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