CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS AND RETAINED EARNINGS (Parenthetical)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS AND RETAINED EARNINGS
Stock dividends (as a percent)	3.00%	3.00%

The dividend rate applied to calculate stock dividends distributed based on the number of shares outstanding as of the record date.

No definition available.

Name:	tr_StockDividendsDistributedPercentOfSharesOutstandingAtRecordDate
Namespace Prefix:	tr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration