Subsequent Events - 2015 Outperformance Program (Details) (USD $)	0 Months Ended
Jan. 02, 2014	Jan. 01, 2015
Subsequent Event [Line Items]
Performance period	3 years
2012 Outperformance Program \| Subsequent Event [Member]
Subsequent Event [Line Items]
Maximum bonus pool		$ 15,000,000
Amount by which TSR exceeds simple annual TSR		4.00%
Absolute TSR component		9.00%
Percent TSR Exceeds SNL Equity REIT Index		4.00%
Percent of Underperformance of SNL Equity REIT Index		4.00%
Underperformance of SNL Equity REIT Index per Year		3.00%
Target bonus pool		$ 3.6
Simple Annual TSR		11.00%
Performance period		3 years
Restricted Stock Units (RSUs)
Subsequent Event [Line Items]
Award vesting period	2 years
Restricted Stock Units (RSUs) \| 2012 Outperformance Program \| Subsequent Event [Member]
Subsequent Event [Line Items]
Award vesting period		2 years
Executive Officer, Victor Coleman [Member] \| Performance Shares [Member] \| 2012 Outperformance Program \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage participation rights		22.40%
Executive Officer, Mark Lammas [Member] \| Performance Shares [Member] \| 2012 Outperformance Program \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage participation rights		12.00%
Executive Officer, Christopher Barton [Member] \| Performance Shares [Member] \| 2012 Outperformance Program \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage participation rights		8.00%
Executive Officer, Alex Vouvalides [Member] \| Performance Shares [Member] \| 2012 Outperformance Program \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage participation rights		10.00%
Maximum \| Subsequent Event [Member]
Subsequent Event [Line Items]
Absolute TSR Reduced on a Linear Basis		100.00%
Simple TSR Reduced on a Linear Basis		7.00%
Minimum \| Subsequent Event [Member]
Subsequent Event [Line Items]
Absolute TSR Reduced on a Linear Basis		0.00%
Simple TSR Reduced on a Linear Basis		0.00%

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Share-Based Compensation Arrangement By Share-Based Payment Award, Absolute Total Shareholder Return, Percentage

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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