Derivatives Instruments and Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2016

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Summary of Outstanding Interest Rate Swaps

The table below provides additional details on our interest rate swaps that are not designated as hedges

	Notional				Strike			Fair Value as of
Property	Amount		Effective Date	Maturity Date	Rate			March 31, 2016		December 31, 2015
(Amounts in thousands)
One Market Plaza	$	840,000	Aug-2007 - Aug-2012	Aug-2017		5.02	%	$	50,046	$	55,404
31 West 52nd Street		237,600	Dec-2007	Dec-2017		4.79	%		16,800		17,661
900 Third Avenue		162,000	Nov-2007	Nov-2017		4.78	%		10,989		11,630
Total interest rate swap liabilities related to non-designated hedges								$	77,835	$	84,695

The table below provides additional details on our interest rate swaps that are designated as cash flow hedges.

	Notional				Strike			Fair Value as of
Property	Amount		Effective Date	Maturity Date	Rate			March 31, 2016		December 31, 2015
(Amounts in thousands)
1633 Broadway	$	1,000,000	Dec 2015	Dec-2020 - Dec-2022		1.79	%	$	36,799	$	9,204
1633 Broadway		400,000	Dec-2020	Dec-2021		2.35	%		2,309		37
Total interest rate swap liabilities related to cash flow hedges								$	39,108	$	9,241