Receivables and Other Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Receivables and Other Assets [Abstract]
Accounts and other receivables, net	$ 22,847	$ 13,317
Tenant note receivable	3,173	3,287
Deferred financing costs, net	10,921	11,006
Deferred leasing costs, net	12,954	10,554
Lease inducements, net	759	880
Straight-line rent receivables, net	46,957	39,095
Prepaid expenses, deposits, equipment and other, net	6,653	6,831
Derivative financial instruments - interest rate swaps	5,073	0
Total	109,337	84,970
Tenant note receivable, interest rate	9.00%
Amortization expense related to deferred leasing costs	2,636	1,868	1,139
Interest expense related to deferred financing costs	3,837	3,861	3,540
Amortization recorded against rental income related to lease inducements	208	269	165
Receivables and Other Assets, Amortization Expense, Fiscal Year Maturity [Abstract]
2014	6,118
2015	5,638
2016	3,599
2017	2,593
2018	2,071
Thereafter	4,615
Total	$ 24,634