108 / sl green realty corp . 2017 annual report espp provides for eligible employees to purchase the common stock at a purchase price equal to 85% ( 85 % ) of the lesser of ( 1 ) a0the market value of the common stock on the first day of the offer- ing period or ( 2 ) a0the market value of the common stock on the last day of the offering period . the espp was approved by our stockholders at our 2008 annual meeting of stockholders . as of december a031 , 2017 , 104597 a0shares of our common stock had been issued under the espp . available for issuance , subject to adjustment upon a merger , reorganization , stock split or other similar corporate change . the company filed a registration statement on form a0s-8 with the sec with respect to the espp . the common stock is offered for purchase through a series of successive offering periods . each offering period will be three months in duration and will begin on the first day of each calendar quarter , with the first a0offering period having commenced on january a01 , 2008 . the 15 . accumulated other comprehensive income the following tables set forth the changes in accumulated other comprehensive income ( loss ) by component as of december a031 , 2017 , 2016 and 2015 ( in thousands ) : sl a0green 2019s share net unrealized of joint venture net unrealized gain on net unrealized gain on derivative gain on derivative marketable instruments ( 1 ) instruments ( 2 ) securities total .
what was the net three year change in the aoci balance for all derivatives and marketable securities?
( 1 ) amount reclassified from accumulated other comprehensive income ( loss ) is included in interest expense in the respective consolidated statements of operations . as of december a031 , 2017 and 2016 , the deferred net losses from these terminated hedges , which is included in accumulated other comprehensive loss relating to net unrealized loss on derivative instrument , was $ 3.2 a0million and $ 7.1 a0million , respectively . ( 2 ) amount reclassified from accumulated other comprehensive income ( loss ) is included in equity in net income from unconsolidated joint ventures in the respective consolidated statements of operations . 16 . fair value measurements we are required to disclose fair value information with regard to our financial instruments , whether or not recognized in the consolidated balance sheets , for which it is practical to estimate fair value . the fasb guidance defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants on the measurement date . we measure and/or disclose the estimated fair value of financial assets and liabilities based on a hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity and the reporting entity 2019s own assumptions about market participant assumptions . this hierarchy consists of three broad levels : level a01 2014 quoted prices ( unadjusted ) in active markets for identical assets or liabilities that the reporting entity can access at the measurement date ; level a02 2014 inputs other than quoted prices included within level a01 , that are observable for the asset or liability , either directly or indirectly ; and level a03 2014 unobservable inputs for the asset or liability that are used when little or no market data is available . we follow this hierarchy for our assets and liabilities measured at fair value on a recurring and nonrecurring basis . in instances in which the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy , the level in the fair value hierarchy within which the entire fair value measure- ment falls is based on the lowest level of input that is significant to the fair value measurement in its entirety . our assessment of the significance of the particular input to the fair value mea- surement in its entirety requires judgment and considers factors specific to the asset or liability. .