Assets Held for Sale (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Assets and liabilities included in asset held for sale
Accumulated depreciation		$ (1,687)
Other assets		192
Accrued liabilities		(375)
Assets held for sale	0	1,739
Land and land improvements [Member]
Assets and liabilities included in asset held for sale
Assets held for sale, property, plant and equipment		313
Buildings and building improvements [Member]
Assets and liabilities included in asset held for sale
Assets held for sale, property, plant and equipment		1,575
Machinery, equipment, furniture and fixtures [Member]
Assets and liabilities included in asset held for sale
Assets held for sale, property, plant and equipment		$ 1,721