Notes Payable, Interest Expense and Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2012

Notes Payable, Commitments and Contingencies [Abstract]

Summary of terms of notes payable [table text block]

The following table summarizes the terms and amounts of the Company’s notes payable at June 30, 2012 and December 31, 2011 ($ in thousands):

Description	Interest Rate			Term/Amortization Period (Years)	Maturity	June 30, 2012		December 31, 2011
Terminus 100 mortgage note	5.25	%		12/30	1/1/2023	$	137,172	$	138,194
The American Cancer Society Center mortgage note	6.45	%		10/30	9/1/2017	134,958		135,650
191 Peachtree Tower mortgage note (interest only until May 1, 2016) (see discussion below)	3.35	%		6.5/30	10/1/2018	100,000		—
Credit Facility, unsecured (see discussion below)	1.85	%		4/N/A	2/28/2016	40,500		198,250
Meridian Mark Plaza mortgage note	6.00	%		10/30	8/1/2020	26,377		26,554
100/200 North Point Center East mortgage note (see discussion below)	5.39	%		5/30	6/1/2012	—		24,478
The Points at Waterview mortgage note	5.66	%		10/25	1/1/2016	15,896		16,135
Mahan Village LLC construction facility	1.90	%	(1)	3/N/A	9/12/2014	5,950		1
Callaway Gardens	4.13	%		N/A	11/18/2013	168		180
						$	461,021	$	539,442

(1) The Company may select from two interest rate options, as defined in the loan agreement, which are based on floating-rate indices plus a spread. The rate at June 30, 2012 was one month LIBOR plus 1.65%.

Credit Facility - Interest Rate Spreads and Facility Fee [table text block]

The pricing spreads and the Facility Fee under the New Facility are as follows:

Leverage Ratio	Applicable % for Eurodollar Rate	Applicable % for Base Rate	Annual Facility Fee %
≤ 40%	1.50%	0.50%	0.20%
>40% but ≤ 50%	1.60%	0.60%	0.25%
>50% but ≤ 55%	1.90%	0.90%	0.35%
>55% but ≤ 60%	2.10%	1.10%	0.40%

Summary of interest [table text block]

For the three and six months ended June 30, 2012 and 2011, interest expense was as follows (in thousands):

	Three Months Ended June 30,					Six Months Ended June 30,
	2012			2011		2012			2011
Total interest incurred	$	6,364		$	7,358	$	13,058		$	14,902
Interest capitalized	(489		)	—		(915		)	—
Total interest expense	$	5,875		$	7,358	$	12,143		$	14,902