Summary of Significant Accounting Policies (Details 9) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012
Property, plant and equipment and long-lived assets
Gain (loss) on disposal/write-down of property, plant and equipment	$ 173	$ 2,375	$ 1,515
North American Business
Property, plant and equipment and long-lived assets
Gain (loss) on disposal/write-down of property, plant and equipment			(700)
North American Business | Leased vehicles
Property, plant and equipment and long-lived assets
Gain (loss) on disposal/write-down of property, plant and equipment			2,700
Latin America
Property, plant and equipment and long-lived assets
Gain (loss) on disposal/write-down of property, plant and equipment			$ (500)