Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2012

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Parent Company	Unrealized Gains (Losses) on Securities			Cash Flow Hedges			Accumulated Other Comprehensive Loss
Balance at January 1, 2010	$	(9	)	$	(9,129	)	$	(9,138	)
Change during year	—			7,320			7,320
Non-controlling interest — consolidated real estate venture partner’s share of unrealized (gains)/losses on derivative financial instruments	—			(155		)	(155		)
Reclassification adjustments for (gains) losses reclassified into operations	—			28			28
Balance at December 31, 2010	$	(9	)	$	(1,936	)	$	(1,945	)
Change during year	—			(4,499		)	(4,499		)
Non-controlling interest — consolidated real estate venture partner’s share of unrealized (gains)/losses on derivative financial instruments	—			212			212
Reclassification adjustments for (gains) losses reclassified into operations	—			153			153
Balance at December 31, 2011	$	(9	)	$	(6,070	)	$	(6,079	)
Change during year	—			(7,338		)	(7,338		)
Non-controlling interest — consolidated real estate venture partner’s share of unrealized (gains)/losses on derivative financial instruments	—			187			187
Settlement of interest rate swaps	—			(2,985		)	(2,985		)
Reclassification adjustments for (gains) losses reclassified into operations	—			297			297
Balance at December 31, 2012	$	(9	)	$	(15,909	)	$	(15,918	)

Operating Partnership	Unrealized Gains (Losses) on Securities			Cash Flow Hedges			Accumulated Other Comprehensive Loss
Balance at January 1, 2010	$	(9	)	$	(9,419	)	$	(9,428	)
Change during year	—			7,320			7,320
Reclassification adjustments for (gains) losses reclassified into operations	—			28			28
Balance at December 31, 2010	$	(9	)	$	(2,071	)	$	(2,080	)
Change during year	—			(4,499		)	(4,499		)
Reclassification adjustments for (gains) losses reclassified into operations	—			153			153
Balance at December 31, 2011	$	(9	)	$	(6,417	)	$	(6,426	)
Change during year	—			(7,338		)	(7,338		)
Settlement of interest rate swaps	—			(2,985		)	(2,985		)
Reclassification adjustments for (gains) losses reclassified into operations	—			297			297
Balance at December 31, 2012	$	(9	)	$	(16,443	)	$	(16,452	)