Annual report pursuant to Section 13 and 15(d)

RELATED PARTY TRANSACTION RELATED PARTY TRANSACTION - Narrative (Details)

v3.10.0.1
RELATED PARTY TRANSACTION RELATED PARTY TRANSACTION - Narrative (Details) - $ / shares
1 Months Ended 12 Months Ended
May 12, 2016
May 31, 2016
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Related Party Transaction [Line Items]          
Purchase of common shares (in shares)     393,864 212,424 1,132,452
Schawk Inc | Director and President          
Related Party Transaction [Line Items]          
Purchase of common shares (in shares)   970,000      
Purchase price (in dollars per share)   $ 50.6921625      
Average of high/low trading prices (as a percent) 96.76%