Related Party Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Dec. 31, 2015	Sep. 30, 2013	Feb. 27, 2016	Feb. 28, 2015	Mar. 01, 2014	Oct. 27, 2015	Jul. 22, 2013	Mar. 02, 2013
Related Party Transactions
Receivables from related parties			$ 48	$ 15
Number of days following the closing of the merger	120 days
Prepayment of executive retention bonus			500
Bonus expense, net			$ 1,778
Par value of common stock (in dollars per share)		$ 1.00	$ 1	$ 1		$ 1.00
Market value of common stock issued upon redemption of preferred stock			$ 64,089	$ 20
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
Liquidation preference		$ 199,937
Conversion of Series G and H preferred stock					$ 25,603
Common Stock
Related Party Transactions
Common stock issued upon redemption of preferred stock (in shares)			24,762,000	8,000	40,000,000
Market value of common stock issued upon redemption of preferred stock			$ 24,762	$ 8	$ 40,000
Series G preferred stock
Related Party Transactions
Quarterly dividend (as a percent)		7.00%
Market value of common stock issued upon redemption of preferred stock					$ (1)
Liquidation preference (in dollars per share)		$ 100			$ 100			$ 100
Series H preferred stock
Related Party Transactions
Quarterly dividend (as a percent)		6.00%
Common stock issued upon redemption of preferred stock (in shares)					(1,904,000)
Market value of common stock issued upon redemption of preferred stock					$ (190,415)
Preferred Stock (Series G and H)
Related Party Transactions
Preferred stock outstanding (in shares)		0
Contracted conversion rate (in dollars per share)		$ 5.50
Total common stock shares issuable at contracted conversion rate		34,621,117
Conversion of Series G and H preferred stock		$ 25,603
Diluted earning per share due to conversion of preferred stock (in dollars per share)		$ 0.03
Green Equity Investors III, L.P. ("LGP") | Common Stock
Related Party Transactions
Common stock issued upon redemption of preferred stock (in shares)		40,000,000
Market value of common stock issued upon redemption of preferred stock		$ 190,400
Green Equity Investors III, L.P. ("LGP") | Series G preferred stock
Related Party Transactions
Number of shares agreed to be exchanged		8
Green Equity Investors III, L.P. ("LGP") | Series H preferred stock
Related Party Transactions
Number of shares agreed to be exchanged		1,876,013
Green Equity Investors III, L.P. ("LGP") | Preferred Stock (Series G and H)
Related Party Transactions
Preferred stock outstanding (in shares)		1,904,161
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
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
Jean Coutu Group
Related Party Transactions
Number of shares sold							65,401,162