SCHN 2017 Annual Report

94 / Schnitzer Steel Industries, Inc. Form 10-K 2017 Schedule II – Valuation and Qualifying Accounts For the Years Ended August 31, 2017, 2016 and 2015 (In thousands) Column A Column B Column C Column D Column E Description Balance at beginning of period Charges to cost and expenses Deductions Balance at end of period Fiscal 2017 Allowance for doubtful accounts $ 2,315 $ 126 $ (161) $ 2,280 Deferred tax valuation allowance $ 86,917 $ 690 $ (17,233) $ 70,374 Fiscal 2016 Allowance for doubtful accounts $ 2,496 $ 131 $ (312) $ 2,315 Deferred tax valuation allowance $ 78,304 $ 8,613 $ — $ 86,917 Fiscal 2015 Allowance for doubtful accounts $ 2,720 $ (280) $ 56 $ 2,496 Allowance for notes and other contractual receivables $ 7,602 $ — $ (7,602) $ — Deferred tax valuation allowance $ 30,265 $ 48,039 $ — $ 78,304