General (Details) $ in Millions	9 Months Ended
	Sep. 24, 2016 USD ($)	Sep. 30, 2017 store state
Nature of business [Abstract]
Excess Tax Benefit from Share-based Compensation, Operating Activities | $	$ 11.6
Number of rural lifestyle retail stores operated by the company		1,827
Number of states in which rural lifestyle retail stores are operated by the company | state		49
TSCO stores [Domain]
Nature of business [Abstract]
Number of rural lifestyle retail stores operated by the company		1,665
Petsense stores [Domain]
Nature of business [Abstract]
Number of rural lifestyle retail stores operated by the company		162