Comprehensive Income (Tables)

6 Months Ended

Mar. 31, 2018

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Schedule of comprehensive income

Comprehensive income, which is net of income taxes, consists of the following (in thousands):

	Three Months Ended   March 31,				Six Months Ended   March 31,
	2018		2017		2018		2017
Net income	$	15,000	$	17,442	$	14,626	$	30,549
Foreign currency translation loss	1,389		5,307		1,284		(8,132		)
Unrealized gain on cash flow hedging instruments	1,461		268		2,831		2,450
Total comprehensive income	$	17,850	$	23,017	$	18,741	$	24,867