CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Revenue	$ 510,522	$ 437,303
Cost of goods and services	367,476	316,524
Gross profit	143,046	120,779
Selling, general and administrative expenses	113,754	106,624
Income from operations	29,292	14,155
Other income (expense)
Interest expense	(16,529)	(16,839)
Interest income	198	197
Other, net	1,004	414
Total other expense, net	(15,327)	(16,228)
Income (loss) before taxes from continuing operations	13,965	(2,073)
Provision (benefit) from income taxes	5,212	(24,904)
Income from continuing operations	8,753	22,831
Discontinued operations:
Income from operations of discontinued operations	0	11,466
Provision for income taxes	0	3,308
Income from discontinued operations	0	8,158
Net income	$ 8,753	$ 30,989
Income from continuing operations (in dollars per share)	$ 0.21	$ 0.54
Income from discontinued operations (in dollars per share)	0	0.19
Basic earnings per common share (in Dollars per share)	$ 0.21	$ 0.74
Weighted-average shares outstanding (in shares)	40,750	41,923
Income from continuing operations (in dollars per share)	$ 0.21	$ 0.53
Income from discontinued operations (in dollars per share)	0	0.19
Diluted earnings per common share (in dollars per share)	$ 0.21	$ 0.72
Weighted-average shares outstanding (in shares)	41,888	43,336
Dividends paid per common share (in Dollars per share)	$ 0.0725	$ 0.07
Dividends paid per common share	$ 8,753	$ 30,989
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustments	(5,736)	(1,289)
Pension and other post retirement plans	184	9,559
Change in cash flow hedges	102	88
Total other comprehensive income (loss), net of taxes	(5,450)	8,358
Comprehensive income, net	$ 3,303	$ 39,347