SUBSEQUENT EVENTS (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	0 Months Ended
Feb. 14, 2012 Restricted Stock Units The 2012 Performance Plan Executive officer	Feb. 02, 2013 Subsequent event Dividend	Jan. 02, 2013 Subsequent event Restricted Stock Units The 2012 Performance Plan Executive officer
Subsequent events
Common stock dividend declared per share (in dollars per share)		$ 0.70
Approved dividend distribution on the UPREIT Units (in dollars per unit)		$ 0.70
Estimated fair value of awards granted	$ 4,084		$ 3,653

Aggregate dividends declared during the period for each share of common stock outstanding.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration