XML 22 R54.htm IDEA: XBRL DOCUMENT v2.4.0.6

Significant Accounting Policies (Details 2)	12 Months Ended
	Dec. 31, 2011 Year
Factory machinery and equipment
Property, Plant and Equipment
Estimated useful lives, minimum (in years)	5
Estimated useful lives, maximum (in years)	25
Glass-melting furnaces and forming machines
Property, Plant and Equipment
Estimated useful lives, minimum (in years)	7
Estimated useful lives, maximum (in years)	15
Buildings and building equipment
Property, Plant and Equipment
Estimated useful lives, minimum (in years)	10
Estimated useful lives, maximum (in years)	50

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLifeMaximum
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The minimum useful life of long lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLifeMinimum
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration