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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 USD ($) JointVenture Segment | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |
Maximum exposure to losses associated with VIEs | $ 405,400 | $ 412,400 |
Capitalized costs | 8,100 | 9,100 | $ 9,900
Interest paid | 220,000 | 234,600 | 243,200
Capitalized interest paid | 3,100 | 6,700 | 8,700
Impairment of joint venture investments | 0 | 1,909 | 30,652
Accounts receivable, unrecoverable amount | 7,100 | 6,200 |
Allowance for straight line rent | 4,100 | 4,000 |
Straight line rent receivable, net | 65,100 | 65,700 |
Stock-based compensation cost recognized by the company | 7,000 | 7,000 | 9,100
Accelerated vesting of awards due to employee severance charges | $ 900 | 500 | 1,400
Number of reportable segments | Segment | 2 |  |
Quantitative threshold of revenues, profit or loss and assets for identifying reportable segments | The Company’s chief operating decision maker may review operational and financial data on a property basis and does not differentiate properties on a geographical basis for purposes of allocating resources or capital. The Company evaluates individual property performance primarily based on net operating income before depreciation, amortization and certain nonrecurring items. Each consolidated shopping center is considered a separate operating segment; however, each shopping center on a stand-alone basis represents less than 10% of revenues, profit or loss, and assets of the combined reported operating segment and meets the majority of the aggregations criteria under the applicable standard. |  |
Percentage of lease commission income upon lease execution | 50.00% |  |
Percentage of lease commission income upon tenant rent commencement | 50.00% |  |
Geographic Concentration Risk [Member] | Revenues [Member] | Shopping Center [Member] | Stand-Alone Shopping Center [Member] | Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Percentage of revenues | 10.00% |  |
Real Estate Investment [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Impairment charges related to consolidated real estate investment | $ 110,900 | $ 279,000 | $ 38,100
Variable Interest Entity, Not Primary Beneficiary [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of unconsolidated joint ventures | JointVenture | 2 |  |

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