Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Reconciliation Between GAAP Net Income And Taxable Income [Table Text Block]

Reconciliation between GAAP net income and taxable income:

		Year Ended December 31,
(In thousands)		2013			2012			2011
GAAP net income		$	61,250		$	30,592		$	5,328
Add:	GAAP net income of taxable REIT subsidiaries
	and noncontrolling redeemable interest, net	15			1,224			3,002
GAAP net income from REIT operations (1)		61,265			31,816			8,330
Add:	Book depreciation and amortization	61,834			57,672			55,899
Less:	Tax depreciation and amortization	(41,661		)	(39,835		)	(35,086		)
	Book/tax differences on gains from
	capital transactions	(50,472		)	(19,128		)	(4,677		)
Other book/tax differences, net		(4,616		)	1,088			51
Taxable income before adjustments		26,350			31,613			24,517
Less:	Capital gain	(2,356		)	(7,762		)	(9,920		)
Taxable income subject to dividend requirements		$	23,994		$	23,851		$	14,597

(1) All adjustments to GAAP net income from REIT operations are net of amounts attributable to taxable REIT subsidiaries and noncontrolling interests.

Reconciliation Between Cash Dividends Paid And Dividends Paid Decuction [Table Text Block]

Reconciliation between cash dividends paid and dividends paid deduction:

	Year Ended December 31,
(In thousands)	2013			2012			2011
Cash dividends paid	$	38,933		$	32,406		$	28,089
Less: Portion designated as capital gain distribution	(2,356		)	(7,762		)	(9,920		)
Less: Return of capital	(12,583		)	(793		)	(3,572		)
Taxable income subject to the 90.0% dividend requirement	$	23,994		$	23,851		$	14,597

Dividends Per Common Share

Total dividends per common share and the related components for the years ended December 31, 2013, 2012 and 2011, as reported for income tax purposes, were as follows:

Year Ended December 31, 2013
			Non-Taxable		Total		Unrecaptured
	Ordinary		Return of		Capital		Section 1250
Date Paid	Income		Capital		Gain		Gain		Dividends
2/1/2013	$	0.129355	$	0.049149	$	0.011496	$	0.011496	$	0.190000
5/1/2013	0.129355		0.049149		0.011496		0.011496		0.190000
8/1/2013	0.129355		0.049149		0.011496		0.011496		0.190000
11/1/2013	0.129355		0.049149		0.011496		0.011496		0.190000
	$	0.517420	$	0.196596	$	0.045984	$	0.045984	$	0.760000

Year Ended December 31, 2012
			Non-Taxable		Total		Unrecaptured
	Ordinary		Return of		Capital		Section 1250
Date Paid	Income		Capital		Gain		Gain		Dividends
2/1/2012	$	0.140533	$	0.009077	$	0.020390	$	0.017826	$	0.170000
5/1/2012	0.148800		0.009611		0.021589		0.018875		0.180000
8/1/2012	0.148800		0.009611		0.021589		0.018875		0.180000
11/1/2012	0.148800		0.009611		0.021589		0.018875		0.180000
	$	0.586933	$	0.037910	$	0.085157	$	0.074451	$	0.710000

Year Ended December 31, 2011
			Non-Taxable		Total		Unrecaptured
	Ordinary		Return of		Capital		Section 1250
Date Paid	Income		Capital		Gain		Gain		Dividends
2/1/2011	$	0.100553	$	0.009460	$	0.059987	$	0.056351	$	0.170000
5/2/2011	0.100553		0.009460		0.059987		0.056351		0.170000
8/1/2011	0.100553		0.009460		0.059987		0.056351		0.170000
11/1/2011	0.100553		0.009460		0.059987		0.056351		0.170000
	$	0.402212	$	0.037840	$	0.239948	$	0.225404	$	0.680000