Contingency (Details) $ in Millions	6 Months Ended
Jun. 30, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Loss Contingency Accrual	$ 5.9
Contract Dispute Recovery, net	$ 3.7

Amount of additions to receivables pertaining to a loss contingency.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12053-110248

Name:	us-gaap_LossContingencyRelatedReceivableCarryingValueAdditions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration