Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 218,403	$ 76,970
Accounts receivable	551,269	596,647
Accounts receivable - affiliate	3,223	0
Inventories	1,102,261	1,445,517
Prepaid expense and other current assets	32,157	55,843
Total current assets	1,907,313	2,174,977
Property, plant and equipment, net	1,806,060	1,781,589
Deferred charges and other assets, net	330,517	262,479
Total assets	4,043,890	4,219,045
Current liabilities:
Accounts payable	335,182	402,293
Accounts payable - affiliate	11,630	0
Accrued expenses	1,129,970	1,210,945
Current portion of long-term debt	0	12,029
Deferred revenue	1,227	7,766
Total current liabilities	1,478,009	1,633,033
Delaware Economic Development Authority loan	8,000	12,000
Long-term debt	742,349	723,547
Intercompany notes payable	122,264	31,835
Other long-term liabilities	62,752	46,477
Total liabilities	2,413,374	2,446,892
Commitments and contingencies (Note 12)
Equity:
Member's equity	1,144,100	933,164
Retained earnings	513,292	853,527
Accumulated other comprehensive loss	(26,876)	(14,538)
Total equity	1,630,516	1,772,153
Total liabilities and equity	$ 4,043,890	$ 4,219,045