Environmental and Legal Matters (Details) (USD $)	0 Months Ended
Mar. 20, 2014 individuals	Mar. 20, 2014 subsidiaries	Mar. 20, 2014 former_employee	Mar. 20, 2014 companies	Mar. 20, 2014 current_employees	Feb. 19, 2014
Environmental Remediation Obligations [Abstract]
Number of defendants	100	2	1	18	2
Potential monetary sanctions, in excess of						$ 100,000

The estimated minimum amount of possible loss from the contingency.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

Name:	us-gaap_LossContingencyRangeOfPossibleLossMinimum
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant