Benefit Plans (Tables)

4 Months Ended

Jun. 18, 2016

Compensation and Retirement Disclosure [Abstract]

Net Periodic Benefit Expense and Contributions for Defined Benefit Pension Plans and Other Postretirement Benefit Plans

Net periodic benefit expense (income) and contributions for defined benefit pension and other postretirement benefit plans consisted of the following:

	First Quarter Ended
	Pension Benefits						Other Postretirement Benefits
	June 18,   2016   (16 weeks)			June 20,   2015   (16 weeks)			June 18,   2016   (16 weeks)			June 20,   2015   (16 weeks)
Service cost	$	—		$	—		$	—		$	—
Interest cost	26			33			1			1
Expected return on assets	(44		)	(44		)	—			—
Amortization of prior service benefit	—			—			(5		)	(4		)
Amortization of net actuarial loss	14			24			1			2
Net periodic benefit (income) expense	$	(4	)	$	13		$	(3	)	$	(1	)
Contributions to benefit plans	$	(1	)	$	(26	)	$	—		$	(11	)