CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenue	$ 473,320	$ 462,200	$ 1,436,184	$ 1,456,456
Cost of goods and services	357,363	342,843	1,088,550	1,106,837
Gross profit	115,957	119,357	347,634	349,619
Selling, general and administrative expenses	90,740	88,880	272,972	271,765
Restructuring and other related charges	0	5,900	0	5,900
Total operating expenses	90,740	94,780	272,972	277,665
Income from operations	25,217	24,577	74,662	71,954
Other income (expense)
Interest expense	(12,729)	(13,039)	(38,747)	(37,454)
Interest income	17	79	46	134
Other, net	(935)	142	(1,176)	312
Total other expense, net	(13,647)	(12,818)	(39,877)	(37,008)
Income before taxes	11,570	11,759	34,785	34,946
Provision for income taxes	2,017	4,163	7,923	10,467
Net income	$ 9,553	$ 7,596	$ 26,862	$ 24,479
Basic income (loss) per common share (in Dollars per share)	$ 0.23	$ 0.19	$ 0.66	$ 0.59
Weighted-average shares outstanding	41,683	40,558	40,765	41,318
Diluted income (loss) per common share (in Dollars per share)	$ 0.22	$ 0.18	$ 0.63	$ 0.55
Weighted-average shares outstanding	43,255	43,280	42,934	44,243
Dividends paid per common share (in Dollars per share)	$ 0.06	$ 0.05	$ 0.18	$ 0.15
Net income	$ 9,553	$ 7,596	$ 26,862	$ 24,479
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustments	6,414	796	1,344	11,130
Pension and other post retirement plans	544	386	1,632	1,158
Change in cash flow hedges	198	1,287	801	(1,377)
Total other comprehensive income (loss), net of taxes	7,156	2,469	3,777	10,911
Comprehensive income (loss), net	$ 16,709	$ 10,065	$ 30,639	$ 35,390