Acquisitions, Dispositions and Goodwill (Details Textuals) (USD $)	12 Months Ended
Dec. 31, 2014	Jan. 01, 2015
Goodwill [Abstract]
Amount of assets acquired in acquisition	$ 6,996,000us-gaap_GoodwillAcquiredDuringPeriod
Amount of cash paid to acquire an entity	$ 6,400,000	$ 104,500,000

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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