Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 360,347	$ 76,970	$ 57,417	$ 254,291
Accounts receivable	698,399	596,647
Accounts receivable - affiliate	1,279	0
Inventories	1,787,465	1,445,517
Prepaid expense and other current assets	30,231	55,843
Total current assets	2,877,721	2,174,977
Property, plant and equipment, net	1,826,868	1,781,589
Deferred charges and other assets, net	284,396	262,479
Total assets	4,988,985	4,219,045
Current liabilities:
Accounts payable	377,343	402,293
Accounts payable - affiliate	5,277	0
Accrued expenses	1,391,790	1,210,945
Current portion of long-term debt	0	12,029
Deferred revenue	1,749	7,766
Total current liabilities	1,776,159	1,633,033
Delaware Economic Development Authority loan	8,000	12,000
Long-term debt	743,503	723,547
Intercompany notes payable	123,732	31,835
Other long-term liabilities	44,040	46,477
Total liabilities	2,695,434	2,446,892
Commitments and contingencies (Note 9)
Equity:
Member's equity	1,198,843	933,164
Retained earnings	1,108,630	853,527
Accumulated other comprehensive loss	(13,922)	(14,538)
Total equity	2,293,551	1,772,153
Total liabilities and equity	$ 4,988,985	$ 4,219,045