Acquisition of Citizens Homes - Consideration Transferred (Details) (Citizens Homes, Inc., USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015
Citizens Homes, Inc.
Business Combination, Increase (Decrease) in Contingent Consideration [Roll Forward]
Contingent Consideration - December 31, 2014	$ 3,745
Fair value adjustment for the three months ended March 31, 2015	(157)
Contingent consideration - March 31, 2015	$ 3,902

Amount of liability recognized arising from contingent consideration in a business combination.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 25

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 35

-Paragraph 1

-Subparagraph b

-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Name:	us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant