Derivative and Other Fair Value Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Derivative Instrument Table

The following table summarizes the Company’s consolidated derivative instruments at December 31, 2015 (dollar amounts are in thousands):

	Fair Value Hedges (1)			Forward Starting Swaps (2)
Current Notional Balance	$	450,000		$	50,000
Lowest Possible Notional	$	450,000		$	50,000
Highest Possible Notional	$	450,000		$	50,000
Lowest Interest Rate	2.375		%	2.500		%
Highest Interest Rate	2.375		%	2.500		%
Earliest Maturity Date	2019			2026
Latest Maturity Date	2019			2026

(1) Fair Value Hedges – Converts outstanding fixed rate unsecured notes ($450.0 million2.375%notes due July 1, 2019) to a floating interest rate of 90-Day LIBOR plus 0.61%.

(2) Forward Starting Swaps – Designed to partially fix interest rates in advance of a planned future debt issuance. This swap has a mandatory counterparty termination in 2017, and is targeted to a 2016 issuance.

Schedule of Location and Amount of Financial Instruments on Balanace Sheet

The following tables provide a summary of the fair value measurements for each major category of assets and liabilities measured at fair value on a recurring basis and the location within the accompanying consolidated balance sheets at December 31, 2015 and 2014, respectively (amounts in thousands):

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	12/31/2015		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Assets	$	3,655	$	—	$	3,655	$	—
Supplemental Executive Retirement Plan	Other Assets	105,942		105,942		—		—
Total		$	109,597	$	105,942	$	3,655	$	—
Liabilities
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	Other Liabilities	$	673	$	—	$	673	$	—
Supplemental Executive Retirement Plan	Other Liabilities	105,942		105,942		—		—
Total		$	106,615	$	105,942	$	673	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	566,783	$	—	$	566,783	$	—

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	12/31/2014		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Assets	$	1,597	$	—	$	1,597	$	—
Forward Starting Swaps	Other Assets	332		—		332		—
Supplemental Executive Retirement Plan	Other Assets	104,463		104,463		—		—
Total		$	106,392	$	104,463	$	1,929	$	—
Liabilities
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	Other Liabilities	$	14,104	$	—	$	14,104	$	—
Supplemental Executive Retirement Plan	Other Liabilities	104,463		104,463		—		—
Total		$	118,567	$	104,463	$	14,104	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	500,733	$	—	$	500,733	$	—

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]

The following tables provide a summary of the effect of fair value hedges on the Company’s accompanying consolidated statements of operations and comprehensive income for the years ended December 31, 2015, 2014 and 2013, respectively (amounts in thousands):

December 31, 2015 Type of Fair Value Hedge	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative		Hedged Item	Income Statement Location of Hedged Item Gain/(Loss)	Amount of Gain/(Loss) Recognized in Income on Hedged Item
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Interest Rate Swaps	Interest expense	$	2,058	Fixed rate debt	Interest expense	$	(2,058	)
Total		$	2,058			$	(2,058	)

December 31, 2014 Type of Fair Value Hedge	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative		Hedged Item	Income Statement Location of Hedged Item Gain/(Loss)	Amount of Gain/(Loss)Recognized in Income on Hedged Item
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Interest Rate Swaps	Interest expense	$	1,597	Fixed rate debt	Interest expense	$	(1,597	)
Total		$	1,597			$	(1,597	)

December 31, 2013 Type of Fair Value Hedge	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative			Hedged Item	Income Statement Location of Hedged Item Gain/(Loss)	Amount of Gain/(Loss)Recognized in Income on Hedged Item
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Interest Rate Swaps	Interest expense	$	(1,523	)	Fixed rate debt	Interest expense	$	1,523
Total		$	(1,523	)			$	1,523

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

The following tables provide a summary of the effect of cash flow hedges on the Company’s accompanying consolidated statements of operations and comprehensive income for the years ended December 31, 2015, 2014 and 2013, respectively (amounts in thousands):

	Effective Portion							Ineffective Portion
December 31, 2015 Type of Cash Flow Hedge	Amount of Gain/(Loss) Recognized in OCI on Derivative			Location of Gain/(Loss) Reclassified from Accumulated OCI into Income	Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income			Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	$	(814	)	Interest expense	$	(18,244	)	Interest expense	$	(3,033	)
Total	$	(814	)		$	(18,244	)		$	(3,033	)

	Effective Portion							Ineffective Portion
December 31, 2014 Type of Cash Flow Hedge	Amount of Gain/(Loss) Recognized in OCI on Derivative			Location of Gain/(Loss) Reclassified from Accumulated OCI into Income	Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income			Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	$	(33,215	)	Interest expense	$	(16,868	)	Interest expense	$	91
Total	$	(33,215	)		$	(16,868	)		$	91

	Effective Portion						Ineffective Portion
December 31, 2013 Type of Cash Flow Hedge	Amount of Gain/(Loss) Recognized in OCI on Derivative		Location of Gain/(Loss) Reclassified from Accumulated OCI into Income	Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income			Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps/Treasury Locks	$	18,771	Interest expense	$	(20,141	)	N/A	$	—
Total	$	18,771		$	(20,141	)		$	—