Pension and Savings Plans (Tables)

12 Months Ended

Aug. 31, 2013

Compensation And Retirement Disclosure [Abstract]

Weighted Average Asset Allocation for Pension Plan Assets

The fair values of investments by level and asset category and the weighted-average asset allocations of the Company’s pension plans at the measurement date are presented in the following table:

August 31, 2013
	Fair Value		Asset Allocation						Fair Value Hierarchy
(in thousands)			Actual			Target			Level 1		Level 2		Level 3
U.S. equities	$	57,931		27.9	%		30.0	%	$	—	$	57,931	$	—
International equities		38,145		18.3			20.0			—		38,145		—
Emerging equities		19,030		9.1			10.0			—		19,030		—
High yield equities		19,858		9.5			10.0			—		19,858		—
Alternative investments		1,226		0.6			—			—		—		1,226
Fixed income securities		59,500		28.6			30.0			—		59,500		—
Cash and cash equivalents		12,430		6.0			—			—		12,430		—
	$	208,120		100.0	%		100.0	%	$	—	$	206,894	$	1,226

August 25, 2012
	Fair Value		Asset Allocation						Fair Value Hierarchy
(in thousands)			Actual			Target			Level 1		Level 2		Level 3
U.S. equities	$	51,101		28.2	%		30.0	%	$	—	$	51,101	$	—
International equities		31,767		17.5			20.0			—		31,767		—
Emerging equities		16,471		9.1			10.0			—		16,471		—
High yield equities		17,378		9.6			10.0			—		17,378		—
Alternative investments		2,404		1.3			—			—		—		2,404
Fixed income securities		47,667		26.3			30.0			—		47,667		—
Cash and cash equivalents		14,621		8.0			—			—		14,621		—
	$	181,409		100.0	%		100.0	%	$	—	$	179,005	$	2,404

Change in Fair Value of Level 3 Assets

The change in fair value of Level 3 assets that use significant unobservable inputs is presented in the following table:

(in thousands)	Level 3 Assets
Beginning balance – August 25, 2012	$	2,404
Actual return on plan assets:
Assets held at August 31, 2013		60
Assets sold during the year		72
Sales and settlements		(1,310	)
Ending balance – August 31, 2013	$	1,226

Plan's Funded Status and Amounts Recognized in Company's Consolidated Balance Sheets

The following table sets forth the plans’ funded status and amounts recognized in the Company’s Consolidated Balance Sheets:

(in thousands)	August 31, 2013			August 25, 2012
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year	$	305,206		$	241,645
Interest cost		11,746			12,214
Actuarial (gains) losses		(53,756	)		56,749
Benefits paid		(6,416	)		(5,402	)
Benefit obligations at end of year	$	256,780		$	305,206
Change in Plan Assets:
Fair value of plan assets at beginning of year	$	181,409		$	156,883
Actual return on plan assets		16,218			14,505
Employer contributions		16,909			15,423
Benefits paid		(6,416	)		(5,402	)
Fair value of plan assets at end of year	$	208,120		$	181,409
Amount Recognized in the Statement of Financial Position:
Current liabilities	$	(124	)	$	(30	)
Long-term liabilities		(48,536	)		(123,767	)
Net amount recognized	$	(48,660	)	$	(123,797	)
Amount Recognized in Accumulated Other Comprehensive Loss and not yet reflected in Net Periodic Benefit Cost:
Net actuarial loss	$	(83,601	)	$	(154,678	)
Accumulated other comprehensive loss	$	(83,601	)	$	(154,678	)
Amount Recognized in Accumulated Other Comprehensive Loss and not yet reflected in Net Periodic Benefit Cost and expected to be amortized in next year’s Net Periodic Benefit Cost:
Net actuarial loss	$	(6,879	)	$	(14,721	)
Amount recognized	$	(6,879	)	$	(14,721	)

Net Periodic Benefit Expense

Net periodic benefit expense consisted of the following:

	Year Ended
(in thousands)	August 31, 2013			August 25, 2012			August 27, 2011
Interest cost	$	11,746		$	12,214		$	11,135
Expected return on plan assets		(13,617	)		(11,718	)		(9,326	)
Amortization of prior service cost		—			—			—
Recognized net actuarial losses		14,721			9,795			9,405
Net periodic benefit expense	$	12,850		$	10,291		$	11,214

Actuarial Assumptions Used in Determining Projected Benefit Obligation

The actuarial assumptions used in determining the projected benefit obligation include the following:

	Year Ended
	August 31, 2013			August 25, 2012			August 27, 2011
Weighted average discount rate		5.19	%		3.90	%		5.13	%
Expected long-term rate of return on plan assets		7.50	%		7.50	%		8.00	%

Benefit Payments are Expected to be Paid as Follows

Based on current assumptions about future events, benefit payments are expected to be paid as follows for each of the following fiscal years. Actual benefit payments may vary significantly from the following estimates:

(in thousands)	Benefit Payments
2014	$	9,125
2015		9,205
2016		9,912
2017		10,604
2018		11,193
2019 – 2023		65,396