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Acquisitions: Reconciliation of Purchase Price to Fair Value (Details) - USD ($) $ in Thousands |  |  |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Feb. 17, 2015 | Nov. 14, 2014 | Jun. 04, 2014 | Oct. 24, 2013 | Dec. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Acquisition |  |  |  |  |  |  |  |
Less debt assumed |  |  |  |  |  | $ 0 | $ (1,414,659) | $ (257,064)
Carrying value of investment |  |  |  |  | $ (1,532,552) | (1,532,552) | (984,132) |
Gain on remeasurement of assets |  |  |  |  |  | $ 22,089 | $ 1,423,136 | $ 51,205
Inland Center |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |
Purchase price | $ 51,250 |  |  |  |  |  |  |
Less debt assumed | (25,000) |  |  |  |  |  |  |
Carrying value of investment | (4,161) |  |  |  |  |  |  |
Gain on remeasurement of assets | 22,089 |  |  |  |  |  |  |
Fair value of acquired net assets (at 100% ownership) | $ 52,500 |  |  |  |  |  |  |
Superstition Springs Land I |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |
Purchase price |  |  |  | $ 46,162 |  |  |  |
Less debt assumed |  |  |  | (22,500) |  |  |  |
Carrying value of investment |  |  |  | (32,476) |  |  |  |
Gain on remeasurement of assets |  |  |  | 14,864 |  |  |  |
Fair value of acquired net assets (at 100% ownership) |  |  |  | $ 71,002 |  |  |  |
Cascade Mall |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |
Purchase price |  |  | $ 15,233 |  |  |  |  |
Carrying value of investment |  |  | (15,767) |  |  |  |  |
Fair value of acquired net assets (at 100% ownership) |  |  | $ 31,000 |  |  |  |  |
PPR Queens Portfolio |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |
Purchase price |  | $ 1,838,886 |  |  |  |  |  |
Less debt assumed |  | (672,109) |  |  |  |  |  |
Carrying value of investment |  | (208,735) |  |  |  |  |  |
Gain on remeasurement of assets |  | 1,423,136 |  |  | $ 1,423,136 |  |  |
Fair value of acquired net assets (at 100% ownership) |  | $ 2,381,178 |  |  |  |  |  |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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