INDUSTRIAL DEVELOPMENT BONDS: (Details)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
INDUSTRIAL DEVELOPMENT BONDS:
Industrial development bonds, average floating interest rate (as a percent)	0.10%	0.20%

Represents the percentage of average floating interest rate for industrial development bonds.

No definition available.

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