Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes [Abstract]

Schedule of Dividends Declared Per Share

Per share dividend payments to common stockholders for the last three years are characterized for tax purposes as follows:

(Unaudited)	2012		2011		2010
Ordinary income	$	2.62870	$	2.32042	$	2.32601
Capital gain	0.01130		0.32494		0.01887
Return of capital	—		0.06964		0.01512
Dividends declared per common share	$	2.64	$	2.715	$	2.36

Schedule of Components of Income Tax Expense (Benefit)

A reconciliation of our income tax expense for financial statement purposes, which is computed by applying the applicable state and federal corporate tax rates for the year ended December 31, 2012, is as follows:

	2012			2011			2010
Tax at statutory rate on earnings from continuing operations before unconsolidated entities, noncontrolling interest and income taxes	$	25,248		$	24,900		$	21,199
State income taxes, net of federal benefit	3,431			3,383			2,881
Tax attributable to non-controlling interest	(70		)	—			—
Tax at statutory rates on earnings not subject to federal and state income taxes	(28,572		)	(28,283		)	(24,080		)
Other differences	100			96			82
Income tax expense	$	137		$	96		$	82