| Disaggregation of Revenue | Disaggregated sales by segment and region for the three and six months ended March 31, 2022 and 2021 were as follows: 
 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | SGK Brand Solutions |  | Memorialization |  | Industrial Technologies |  | Consolidated |  
|  |  | Three Months Ended March 31,
 |  | Three Months Ended March 31,
 |  | Three Months Ended March 31,
 |  | Three Months Ended March 31,
 |  
|  |  | 2022 | 2021 |  | 2022 | 2021 |  | 2022 | 2021 |  | 2022 | 2021 |  
| North America |  | $ | 69,080 |  | $ | 66,282 |  |  | $ | 205,655 |  | $ | 190,253 |  |  | $ | 34,768 |  | $ | 32,260 |  |  | $ | 309,503 |  | $ | 288,795 |  |  
| Central and South America |  | 1,123 |  | 1,319 |  |  | — |  | — |  |  | — |  | — |  |  | 1,123 |  | 1,319 |  |  
| Europe |  | 60,852 |  | 64,581 |  |  | 11,924 |  | 12,662 |  |  | 41,611 |  | 31,622 |  |  | 114,387 |  | 108,865 |  |  
| Australia |  | 2,687 |  | 3,456 |  |  | 2,425 |  | 2,542 |  |  | — |  | — |  |  | 5,112 |  | 5,998 |  |  
| Asia |  | 13,078 |  | 10,777 |  |  | — |  | — |  |  | 1,775 |  | 1,400 |  |  | 14,853 |  | 12,177 |  |  
| Total Sales |  | $ | 146,820 |  | $ | 146,415 |  |  | $ | 220,004 |  | $ | 205,457 |  |  | $ | 78,154 |  | $ | 65,282 |  |  | $ | 444,978 |  | $ | 417,154 |  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | SGK Brand Solutions |  | Memorialization |  | Industrial Technologies |  | Consolidated |  
|  |  | Six Months Ended March 31, |  | Six Months Ended March 31, |  | Six Months Ended March 31, |  | Six Months Ended March 31, |  
|  |  | 2022 | 2021 |  | 2022 | 2021 |  | 2022 | 2021 |  | 2022 | 2021 |  
| North America |  | $ | 143,270 |  | $ | 136,684 |  |  | $ | 402,406 |  | $ | 360,577 |  |  | $ | 71,133 |  | $ | 59,895 |  |  | $ | 616,809 |  | $ | 557,156 |  |  
| Central and South America |  | 2,143 |  | 2,694 |  |  | — |  | — |  |  | — |  | — |  |  | 2,143 |  | 2,694 |  |  
| Europe |  | 121,854 |  | 128,209 |  |  | 23,438 |  | 23,102 |  |  | 78,166 |  | 55,794 |  |  | 223,458 |  | 207,105 |  |  
| Australia |  | 5,555 |  | 6,937 |  |  | 4,866 |  | 5,052 |  |  | — |  | — |  |  | 10,421 |  | 11,989 |  |  
| Asia |  | 27,540 |  | 21,850 |  |  | — |  | — |  |  | 3,186 |  | 3,017 |  |  | 30,726 |  | 24,867 |  |  
| Total Sales |  | $ | 300,362 |  | $ | 296,374 |  |  | $ | 430,710 |  | $ | 388,731 |  |  | $ | 152,485 |  | $ | 118,706 |  |  | $ | 883,557 |  | $ | 803,811 |  |  |