Summary of Significant Accounting Policies (Details 2)	12 Months Ended
	Dec. 31, 2013
Summary of Significant Accounting Policies
Inventory adjustment, usage period	12 months
Building | Minimum
Property, plant and equipment
Estimated useful life	25 years
Building | Maximum
Property, plant and equipment
Estimated useful life	40 years
Machinery and equipment | Minimum
Property, plant and equipment
Estimated useful life	3 years
Machinery and equipment | Maximum
Property, plant and equipment
Estimated useful life	10 years
Computer equipment and software | Minimum
Property, plant and equipment
Estimated useful life	3 years
Computer equipment and software | Maximum
Property, plant and equipment
Estimated useful life	5 years
Furniture and fixtures | Minimum
Property, plant and equipment
Estimated useful life	3 years
Furniture and fixtures | Maximum
Property, plant and equipment
Estimated useful life	10 years
Leasehold improvements
Property, plant and equipment
Estimated useful life	15 years
Purchased software
Property, plant and equipment
Estimated useful life	3 years