Fair Values of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2012

Fair Values of Financial Instruments [Abstract]

Schedule of fair value, assets and liabilities measured on recurring basis

	As of September 30, 2012					As of December 31, 2011
	Carrying			Fair		Carrying		Fair
	Amount			Value		Amount		Value
	(In thousands)
Financial Assets:
Cash and cash equivalents		$	53,556	$	53,556	$	75,183	$	75,183
Financial Liabilities:
Mortgage notes payable		$	549,429	$	563,293	$	752,414	$	761,942
Notes payable to banks			125,000		125,000		132,322		125,494
Interest rate swap agreements			15,348		15,348		11,134		11,134