Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical)

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Statement of Comprehensive Income [Abstract]        
Interest rate hedge, tax $ 5 $ 21 $ (3) $ (4)