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SUPPLEMENTAL CASH FLOW INFORMATION
12 Months Ended
Dec. 31, 2020
Supplemental Cash Flow Information [Abstract]  
SUPPLEMENTAL CASH FLOW INFORMATION SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid during the year for:
202020192018
Income taxes$22,637 $21,771 $20,593 
Interest$4,666 $5,674 $6,940 
Non-cash financing activities:
 202020192018
Dividends payable$18,941 $16,855 $15,220