Related Party Transactions (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended	9 Months Ended		0 Months Ended			0 Months Ended			0 Months Ended			0 Months Ended
	Sep. 30, 2013	Nov. 30, 2013	Nov. 30, 2013	Mar. 02, 2013	Sep. 30, 2013 Series G preferred stock	Nov. 30, 2013 Series G preferred stock	Mar. 02, 2013 Series G preferred stock	Sep. 30, 2013 Series H preferred stock	Nov. 30, 2013 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") Preferred Stock (Series G and H)	Jul. 22, 2013 Jean Coutu Group	Sep. 30, 2013 Leonard Green & Partners, L. P. Green Equity Investors III, L.P. ("LGP") Common Stock	Sep. 30, 2013 Leonard Green & Partners, L. P. Green Equity Investors III, L.P. ("LGP") Series G preferred stock	Sep. 30, 2013 Leonard Green & Partners, L. P. Green Equity Investors III, L.P. ("LGP") Series H preferred stock
Related Party Transactions
Number of shares sold													65,401,162
Number of shares agreed to be exchanged															8	1,876,013
Common stock issued upon redemption of preferred stock (in shares)														40,000,000
Par value of common stock (in dollars per share)	$ 1.00	$ 1	$ 1	$ 1
Market value of common stock issued upon redemption of preferred stock														$ 190,400
Closing price per share (in dollars per share)	$ 4.76
Redemption percentage of the liquidation preference per share	105.00%
Liquidation preference	199,937
Preferred stock outstanding (in shares)											0	1,904,161
Liquidation preference (in dollars per share)	$ 100				$ 100	$ 100	$ 100		$ 100	$ 100
Quarterly dividend (as a percent)					7.00%			6.00%
Contracted conversion rate (in dollars per share)											$ 5.5
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	$ 25,603	$ 25,603
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