Debt Including Capital Lease Obligations - Carrying and Estimated Fair Value Table (Details) - USD ($) $ in Thousands		Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Debt Instrument [Line Items]
Capital Lease Obligations	[1]	$ 40,192	$ 41,891	$ 42,142
Estimated Fair Value - Capital lease obligations	[1],[2]	40,100	41,800	42,000
Less current portion		(2,999)	(4,703)	(4,648)
Total long-term debt and capital lease obligations		278,411	637,518	634,882
7.875% Senior Notes | 7.875% Senior Notes
Debt Instrument [Line Items]
Carrying Value		190,390	412,483	412,403
Estimated Fair Value	[2]	203,000	447,000	449,000
4.25% Convertible Senior Notes | Convertible debt
Debt Instrument [Line Items]
Carrying Value		45,872	176,431	173,194
Estimated Fair Value	[2]	45,000	200,000	200,000
2013 ABL Term Loan [Member]
Debt Instrument [Line Items]
Carrying Value			4,875	5,250
Estimated Fair Value	[2]		4,800	5,000
Other Debt Obligations
Debt Instrument [Line Items]
Carrying Value		4,956	6,541	6,541
Estimated Fair Value	[2]	$ 4,900	$ 6,500	$ 6,000

[1] Capital lease obligations include the borrowings for the salad production and warehousing facility in the Midwest. See further description of the build-to-suit lease below

[2] The fair value of the senior notes is based on observable inputs, which include quoted prices for similar assets or liabilities in an active market and market-corroborated inputs (Level 2). All other debt may be traded on the secondary loan market, and the fair value is based on either the last available trading price, if recent, or trading prices of comparable debt (Level 3). See Note 8 for further discussion of fair value.