Stock Based Awards - Assumptions Related to Valuation of Company's LTIP/Stock Options (Detail)	6 Months Ended
	Sep. 08, 2012	Sep. 10, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	2.10%
Risk-free interest rate	0.60%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate	60.50%
Expected life	4 years 6 months
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate	61.20%
Expected life	5 years
2013 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	4.10%
Risk-free interest rate	0.40%
Expected life	3 years
2013 LTIP [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate	44.80%
2013 LTIP [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate	45.80%
Long Term Incentive Plan [Member] | 2012 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield		4.20%
Long Term Incentive Plan [Member] | Minimum [Member] | 2012 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate	76.70%	47.40%
Risk-free interest rate	0.20%	0.30%
Expected life	1 year 8 months 12 days	2 years 8 months 12 days
Long Term Incentive Plan [Member] | Maximum [Member] | 2012 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate	79.10%	51.60%
Risk-free interest rate	1.20%	1.20%
Expected life	3 years 1 month 6 days	3 years 1 month 6 days