Basis of Presentation Prior Period Adjustments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Jun. 30, 2014
Prior Period Adjustments [Abstract]
Correction of Error Inventory Valuation	$ 3.8
Correction of Error Value Added Tax Accrual	$ 4.5

Correction of error related to a prior period value-added tax accrual

No definition available.

Name:	tkr_CorrectionofErrorValueAddedTaxAccrual
Namespace Prefix:	tkr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration