Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended
Sep. 30, 2007	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]
Litigation settlement, gross	$ 7.3
Payments for litigation settlements	3.7
Accrual for remaining litigation settlement		$ 3.6

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

Name:	us-gaap_PaymentsForLegalSettlements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration