Note 2 - Operating Property Activities (Detail) - Acquisitions Details (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012 sqft		Dec. 31, 2011 sqft	Jan. 31, 2012 Woodbridge S.C. [Member] sqft		Jan. 31, 2012 Bell Camino Center [Member] sqft		Feb. 29, 2012 Olympia West Outparcel [Member] sqft		Mar. 31, 2012 Frontier Village [Member] sqft		Mar. 31, 2012 Silverdale S.C. [Member] sqft		Jan. 31, 2012 Various 31 Properties [Member] sqft		Jan. 31, 2012 Duncan, SC [Member] sqft		Mar. 31, 2012 Various 30 Properties [Member] sqft		Mar. 31, 2012 Peru, IL [Member] sqft		Apr. 30, 2012 Towson Place [Member] sqft		May 31, 2012 Prien Lake Outparcel [Member] sqft		Jun. 30, 2012 Devon Village [Member] sqft		Jun. 30, 2012 Various, NC [Member] sqft
Purchase Price (Cash)	$ 270,715			$ 9,000		$ 4,185		$ 1,200		$ 12,231	[1]	$ 8,335	[1]	$ 30,753	[2]	$ 1,048	[3]	$ 39,493	[2]	$ 995	[3]	$ 69,375	[4]	$ 1,800		$ 28,550		$ 63,750
Purchase Price (Debt Assumed)	116,735					4,210				30,900	[1]	24,000	[1]									57,625	[4]
Purchase Price (Total)	$ 387,450			$ 9,000		$ 8,395		$ 1,200		$ 43,131	[1]	$ 32,335	[1]	$ 30,753	[2]	$ 1,048	[3]	$ 39,493	[2]	$ 995	[3]	$ 127,000	[4]	$ 1,800		$ 28,550		$ 63,750
GLA (in Square feet)	1,863,000	[5]	84,400,000	97,000	[5]	63,000	[5]	6,000	[5]	195,000	[1],[5]	170,000	[1],[5]	83,000	[2],[5]	3,000	[3],[5]	107,000	[2],[5]	4,000	[3],[5]	680,000	[4],[5]	8,000	[5]	79,000	[5]	368,000	[5]

[1] These properties were acquired from a joint venture in which the Company has a 15% noncontrolling interest. The Company evaluated these transactions pursuant to the FASB's Consolidation guidance and as such recognized an aggregate gain of $2.0 million from the fair value adjustment associated with its original ownership due to a change in control and is included in Equity in income of joint ventures, net on the Company's Condensed Consolidated Statements of Income.

[2] Acquired an aggregate of 61 parcels net leased to restaurants through a consolidated joint venture, in which the Company has a 99.1% controlling interest.

[3] Acquired an aggregate of two parcels net leased to restaurants through a consolidated joint venture, in which the Company has a 92.0% controlling interest.

[4] This property was acquired from a joint venture in which the Company had a 30% noncontrolling interest. The Company evaluated this transaction pursuant to the FASB's Consolidation guidance and as such recognized a gain of $12.1 million from the fair value adjustment associated with its original ownership due to a change in control. In addition, the Company recognized promote income of $1.1 million in connection with this transaction. The gain and promote income are included in Equity in income of joint ventures, net on the Company's Condensed Consolidated Statements of Income. Additionally, the debt assumed in connection with this transaction of $57.6 million was repaid in May 2012.

[5] Gross leasable area ("GLA")