Dispositions (Assets and liabilities of disposal groups) (Details) (Segment, Discontinued Operations [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Segment, Discontinued Operations [Member]
Accounts receivable, net	$ 25,415	$ 26,858
Prepaid expenses	5,810	8,164
Inventory and other current assets	30,891	63,618
Current assets of discontinued operations	62,116	98,640
Property, plant and equipment, net	219,223	217,089
Intangible and other long-term assets, net	4,420	4,854
Long-term assets of discontinued operations	223,643	221,943
Accounts payable	21,478	13,449
Accrued expenses	37,362	52,133
Current liabilities of discontinued operations	58,840	65,582
Disposal Group, Including Discontinued Operation, Other Noncurrent Liabilities	$ 18,009	$ 21,801