Subsequent Events (Details) $ in Millions	Apr. 04, 2016 USD ($) a	Mar. 31, 2016 a
Subsequent Event [Line Items]
Acquisition of development land (in acres)		500
Nashville TN Land Acquisition (04/2016) [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Acquisition of development land (in acres)	14
Acquisition purchase price \| $	$ 9.0

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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