Cover - shares	3 Months Ended
	Mar. 27, 2021	Apr. 24, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 27, 2021
Document Transition Report	false
Entity File Number	000-23314
Entity Registrant Name	TRACTOR SUPPLY CO /DE/
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-3139732
Entity Address, Street Address	5401 Virginia Way
Entity Address, City	Brentwood
Entity Address, State	TN
Entity Address, Postal Zip Code	37027
City Area Code	615
Local Phone Number	440-4000
Title of 12(b) Security	Common Stock, $0.008 par value
Trading Symbol	TSCO
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0000916365
Entity Common Stock, Shares Outstanding		115,255,974
Current Fiscal Year End Date	--12-26
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false