Net investments in Properties (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Long Lived Assets Held-for-sale
Assets held for sale	$ 0	$ 86,823
Below-market rent and other intangible liabilities, net
Long Lived Assets Held-for-sale
Assets held for sale	0	(1,808)
Real Estate
Long Lived Assets Held-for-sale
Assets held for sale	0	62,466
Above-market rent intangible assets, net
Long Lived Assets Held-for-sale
Assets held for sale	0	13,872
In-place lease intangible assets, net
Long Lived Assets Held-for-sale
Assets held for sale	$ 0	$ 12,293