Condensed Consolidating Financial Statements (Details Textual)	12 Months Ended
Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Other Parent Company Disclosures	1

Other registrant disclosures related to the condensed financial information of the parent company. May include disclosure of any change in accounting practice that affects comparability between periods.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755

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