Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

Represents the estimated net amount of existing gains (losses) on cash flow hedges at the reporting date expected to be reclassified to equity in net income within the next 12 months.

+ References

No definition available.

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994

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- Definition

Fair value before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 55

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226000-175313

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312

Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (a),(c)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

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- Definition

Fair value before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

+ References

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13495-108611

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-Topic 815

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-Paragraph 6

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

The net gain (loss) during the reporting period due to ineffectiveness in interest rate cash flow hedges. Recognized in earnings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

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- Definition

The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

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Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

+ References

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

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-Topic 815

-SubTopic 10

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Financial Instruments: Derivatives and Hedging (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Financial Instruments: Derivatives and Hedging
Fair Value, liabilities	$ (18,454,000)		$ (18,454,000)		$ (1,329,000)
Fair Value, net	(18,411,000)		(18,411,000)
Estimated current balance held in accumulated other comprehensive loss to be reclassified into earnings within the next 12 months			7,100,000
Share of joint venture of accumulated other comprehensive loss reclassified into equity in net income from unconsolidated joint ventures within the next 12 months			800,000
Amount of Gain or (Loss) Recognized in Other Comprehensive Loss (Effective Portion)	5,465,000	8,069,000	3,668,000	8,249,000
Amount of Loss Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion)	1,828,000	1,730,000	3,793,000	3,438,000
Amount of Gain or (Loss) or Recognized into Income (Ineffective Portion)	1,000	5,000	2,000	5,000
Interest Rate Swap
Financial Instruments: Derivatives and Hedging
Amount of Gain or (Loss) Recognized in Other Comprehensive Loss (Effective Portion)	(465,000)	181,000	(516,000)	140,000
Amount of Loss Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion)	1,272,000	470,000	1,964,000	938,000
Amount of Gain or (Loss) or Recognized into Income (Ineffective Portion)	1,000	0	2,000	0
Interest Rate Cap expiring in November, 2015
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	263,426,000		263,426,000
Strike Rate (as a percent)	6.00%		6.00%
Fair Value, assets	4,000		4,000
Interest Rate Cap Expiring in September 2015
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	137,500,000		137,500,000
Strike Rate (as a percent)	4.00%		4.00%
Fair Value, assets	3,000		3,000
Interest Rate Cap Expiring in May 2016
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	946,000,000		946,000,000
Strike Rate (as a percent)	4.75%		4.75%
Fair Value, assets	36,000		36,000
Interest Rate Swap Expiring in December 2017
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	144,000,000		144,000,000
Strike Rate (as a percent)	2.236%		2.236%
Fair Value, liabilities	(5,859,000)		(5,859,000)
Interest Rate Swap Expiring in December 2017
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	72,000,000		72,000,000
Strike Rate (as a percent)	2.31%		2.31%
Fair Value, liabilities	(3,109,000)		(3,109,000)
Interest Rate Swap Expiring in December 2017
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	72,000,000		72,000,000
Strike Rate (as a percent)	2.31%		2.31%
Fair Value, liabilities	(3,109,000)		(3,109,000)
Interest Rate Swap Expiring in December 2017
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	57,600,000		57,600,000
Strike Rate (as a percent)	1.99%		1.99%
Fair Value, liabilities	(1,859,000)		(1,859,000)
Interest Rate Swap Expiring in December 2017
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	86,400,000		86,400,000
Strike Rate (as a percent)	1.948%		1.948%
Fair Value, liabilities	(2,664,000)		(2,664,000)
Interest Rate Swap Expiring in December 2017
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	72,000,000		72,000,000
Strike Rate (as a percent)	1.345%		1.345%
Fair Value, liabilities	(747,000)		(747,000)
Interest Rate Cap expiring in June, 2016
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	30,000,000		30,000,000
Strike Rate (as a percent)	2.295%		2.295%
Fair Value, liabilities	(1,078,000)		(1,078,000)
Interest Rate Swap expiring in February, 2015
Financial Instruments: Derivatives and Hedging
Notional Value (in thousands)	8,500,000		8,500,000
Strike Rate (as a percent)	0.74%		0.74%
Fair Value, liabilities	(29,000)		(29,000)
Share of unconsolidated joint ventures' derivative instruments
Financial Instruments: Derivatives and Hedging
Amount of Gain or (Loss) Recognized in Other Comprehensive Loss (Effective Portion)	5,930,000	7,888,000	4,184,000	8,109,000
Amount of Loss Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion)	556,000	1,260,000	1,829,000	2,500,000
Amount of Gain or (Loss) or Recognized into Income (Ineffective Portion)	$ 0	$ 5,000	$ 0	$ 5,000