SIGNIFICANT ACCOUNTING POLICIES - Benefits and Investment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SIGNIFICANT ACCOUNTING POLICIES
Premium paid for split dollar life insurance agreements	$ 0	$ 0	$ 0

Represents the amount paid as premium for the split dollar life insurance agreements.

No definition available.

Name:	tr_PremiumPaidForSplitDollarLifeInsuranceAgreements
Namespace Prefix:	tr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration