Fair Values of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Fair Values of Financial Instruments [Abstract]

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

	As of June 30, 2012				As of December 31, 2011
	Carrying		Fair		Carrying		Fair
	Amount		Value		Amount		Value
	(In thousands)
Financial Assets:
Cash and cash equivalents	$	33,254	$	33,254	$	75,183	$	75,183
Financial Liabilities:
Mortgage notes payable	$	581,161	$	595,110	$	752,414	$	761,942
Notes payable to banks		111,267		106,246		132,322		125,494
Interest rate swap agreements		14,356		14,356		11,134		11,134