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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - UNAUDITED - USD ($)
$ in Thousands
3 Months Ended
Jul. 31, 2019
Jul. 31, 2018
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - UNAUDITED [Abstract]    
Net Income $ 3,624 $ 26,295
Other Comprehensive Loss:    
Foreign currency translation adjustment (35,539) (40,325)
Unamortized retirement costs, tax (expense) of $(2,180) and $(2,488), respectively 8,168 8,811
Unrealized gain (loss) on interest rate swaps, tax benefit of $44 and $204, respectively 85 (652)
Total Other Comprehensive Loss (27,286) (32,166)
Comprehensive Loss $ (23,662) $ (5,871)