v3.3.1.900

Commitments and Contingencies (Details 1) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) Extensions | Dec. 31, 2013 USD ($) | Dec. 31, 2014 USD ($)
Long-term Purchase Commitment [Line Items] |  |  |
Commitments for contracts and executed leases, operating and redevelopment and development properties | $ 430.1 |  |
Period after which Ground lease rentals are adjusted based on fair market value and the Consumer Price Index | 5 years |  |
Annual ground lease rental obligations limit | $ 1.0 |  |
Duration of ground lease prior to increase | 5 years |  |
Average annual precentage rent for previous five years (percent) | 50.00% |  |
Accrued environmental remediation liabilities | $ 20.9 |  | $ 15.5
Ten Year Ground Lease Extension Option [Member] |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Number of extension options | Extensions | 3 |  |
Ground lease extension option term | 10 years |  |
Forty-Five Year Ground Lease Extension Option [Member] |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Number of extension options | Extensions | 1 |  |
Ground lease extension option term | 45 years |  |
Property Damage Litigation Case [Member] |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Proceeds from Legal Settlements |  | $ 5.2 |
Former Tenant Litigation Case [Member] |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Proceeds from Legal Settlements |  | $ 3.7 |

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- Definition Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 10 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 24 -Article 5 + Details
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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