Related Party Transactions (Details) (USD $)	0 Months Ended	12 Months Ended		12 Months Ended	0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended						12 Months Ended
	Sep. 30, 2013	Mar. 01, 2014	Mar. 02, 2013	Mar. 01, 2014 Common Stock	Sep. 30, 2013 Series G preferred stock	Mar. 01, 2014 Series G preferred stock	Mar. 02, 2013 Series G preferred stock	Sep. 30, 2013 Series H preferred stock	Mar. 01, 2014 Series H preferred stock	Mar. 02, 2013 Series H preferred stock	Sep. 30, 2013 Preferred Stock (Series G and H)	Sep. 30, 2013 Green Equity Investors III, L.P. ("LGP") Common Stock	Sep. 30, 2013 Green Equity Investors III, L.P. ("LGP") Series G preferred stock	Sep. 30, 2013 Green Equity Investors III, L.P. ("LGP") Series H preferred stock	Sep. 30, 2013 Green Equity Investors III, L.P. ("LGP") Preferred Stock (Series G and H)	Jul. 22, 2013 Jean Coutu Group	Mar. 03, 2012 Leonard Green & Partners, L. P.
Related Party Transactions
Receivables from related parties		$ 19,000	$ 23,000
Number of shares sold																65,401,162
Number of shares agreed to be exchanged													8	1,876,013
Quarterly dividend (as a percent)					7.00%			6.00%
Common stock issued upon redemption of preferred stock (in shares)				40,000,000					(1,904,000)			40,000,000
Par value of common stock (in dollars per share)	$ 1.00	$ 1	$ 1
Market value of common stock issued upon redemption of preferred stock				40,000,000		(1,000)			(190,415,000)			190,400,000
Closing price per share (in dollars per share)	$ 4.76
Redemption percentage of the liquidation preference per share	105.00%
Liquidation preference (in dollars per share)	$ 100				$ 100	$ 100	$ 100		$ 100	$ 100
Liquidation preference	199,937,000
Preferred stock outstanding (in shares)											0				1,904,161
Contracted conversion rate (in dollars per share)											$ 5.50
Shares of earned and unpaid dividends															28,140
Total common stock shares issuable at contracted conversion rate															34,621,117
Conversion of Series G and H preferred stock	25,603,000	25,603,000													25,603,000
Diluted earning per share due to conversion of preferred stock (in dollars per share)															$ 0.03
Additional common stock issued upon redemption of preferred stock (in shares)															5,378,883
Monthly fee that was payable for consulting services which have been terminated																	12,500
Expenses for services provided																	38,000
Expense reimbursement included in the fees																	$ 67,000