. at december 31 , 2014 , $ 3 million of unamortized debt issuance costs was included in other assets on the consolidated statement of financial condition and are being amortized over the remaining term of the 2019 notes . 2017 notes . in september 2007 , the company issued $ 700 million in aggregate principal amount of 6.25% ( 6.25 % ) senior unsecured and unsubordinated notes maturing on september 15 , 2017 ( the 201c2017 notes 201d )