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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]        
Foreign currency translation adjustments, taxes $ 0 $ 0 $ 0 $ 0
Amortization of accumulated other comprehensive loss into net periodic benefit cost, taxes $ 0 $ 0 $ 0 $ 0