Acquisitions (Narrative) (Details) $ in Thousands								3 Months Ended
	Jul. 17, 2016 store	Jul. 10, 2016 store	Jun. 26, 2016 store	Jun. 19, 2016 store	May 08, 2016 store	May 01, 2016 store	Apr. 25, 2015 store	Jun. 25, 2016 USD ($)	Jun. 27, 2015 USD ($)
Business Acquisition [Line Items]
Sales for acquired entities								$ 8,900
Kwik-Fit Tire & Service, Inc. Acquisition [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Number of stores acquired | store	1
Task Holdings, Inc. and Autopar, Inc. Acquisition [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Number of stores acquired | store		4
Harlow Tire Company Acquisition [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Number of stores acquired | store			1
Express Tire Centers, LLC. Acquisition [Member]
Business Acquisition [Line Items]
Number of stores acquired | store				2
Pioneer Tire Pros Acquisition [Member]
Business Acquisition [Line Items]
Number of stores acquired | store					1
McGee Tire Stores, Inc. Acquisition [Member]
Business Acquisition [Line Items]
Number of stores acquired | store						29
Number of plants acquired | store						1
Car-X Associates Corp. Acquisition [Member]
Business Acquisition [Line Items]
Number of franchise rights | store							146
Fiscal 2016 Acquisitions [Member]
Business Acquisition [Line Items]
Total consideration transferred									$ 17,650
Total consideration transferred, portion in cash									11,700
Total consideration transferred, portion payable									$ 6,000
Change in estimates, property, plant and equipment								1,200
Change in estimates, other current assets								100
Change in estimates, long-term deferred income tax assets								800
Change in current liabilities								300
Change in estimates, long-term capital leases and financing obligations								3,000
Adjustments to goodwill related to purchase accounting								1,200
Fiscal 2017 Acquisitions [Member]
Business Acquisition [Line Items]
Total consideration transferred								$ 47,160