Derivatives Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2015

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			December 31, 2015		December 31, 2014
(Amounts in thousands)
One Market Plaza	$	840,000	Aug-2007 to Aug-2012	Aug-2017		5.02	%	$	55,404	$	86,099
31 W 52nd Street		237,600	Dec-2007	Dec-2017		4.79	%		17,661		28,748
900 Third Avenue		162,000	Nov-2007	Nov-2017		4.78	%		11,630		19,158
1633 Broadway (1)		-	n/a	n/a	n/a				-		60,191
Total interest rate swap liabilities related to non-designated hedges								$	84,695	$	194,196
(1) Terminated in connection with the refinancing of 1633 Broadway.

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			December 31, 2015		December 31, 2014
(Amounts in thousands)
1633 Broadway	$	1,000,000	Dec 2015	Dec 2020 to Dec-2022		1.79	%	$	9,204	$	-
1633 Broadway	$	400,000	Dec-2020	Dec-2021		2.35	%		37		-
Total interest rate swap liabilities related to cash flow hedges								$	9,241	$	-