XML 98 R58.htm IDEA: XBRL DOCUMENT

Stockholders' Equity - Common Stock Outstanding, Including Unvested Restricted Shares of Common Stock (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Class of Stock [Line Items]
Common Stock, Shares, Outstanding, Beginning Balance	109,980,850us-gaap_CommonStockSharesOutstanding
Issuance of Restricted Stock Shares	319,055
Common Stock, Shares, Outstanding, Ending Balance	110,600,866us-gaap_CommonStockSharesOutstanding
Common Stock
Class of Stock [Line Items]
Common Stock, Shares, Outstanding, Beginning Balance	109,980,850	98,767,913	86,807,402
Issuance of Common Stock, Including Vesting of Restricted Stock Units	219,695	10,853,693	11,085,905
Issuance of Restricted Stock Shares	319,055	284,461	565,137
Repurchase and Retirement of Restricted Stock Shares	(141,410)	(30,245)	(225,557)
Conversion of Operating Partnership Units	222,676	105,028	535,026
Common Stock, Shares, Outstanding, Ending Balance	110,600,866	109,980,850	98,767,913

- Definition

The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

+ References+ Details