Business Segments (Tables)

6 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Schedule of segment reporting information, by segment

	Three Months Ended March 31,				Six Months Ended March 31,
	2021		2020		2021		2020
Total revenue
Integrated Solutions and Services	$	228,203	$	240,824	$	444,956	$	472,624
Applied Product Technologies	146,107		129,424		269,688		267,953
Total revenue	374,310		370,248		714,644		740,577
Intersegment revenue
Integrated Solutions and Services	4,069		2,939		6,105		6,601
Applied Product Technologies	23,677		15,646		39,782		36,208
Total intersegment revenue	27,746		18,585		45,887		42,809
Revenue to external customers
Integrated Solutions and Services	224,134		237,885		438,851		466,023
Applied Product Technologies	122,430		113,778		229,906		231,745
Total revenue	$	346,564	$	351,663	$	668,757	$	697,768
Operating profit (loss)
Integrated Solutions and Services	$	30,784	$	36,695	$	57,141	$	69,849
Applied Product Technologies	18,103		23,750		31,483		86,892
Corporate	(32,709)		(39,290)		(56,212)		(65,894)
Total operating profit	16,178		21,155		32,412		90,847
Interest expense	(8,395)		(13,252)		(17,068)		(26,835)
Income before income taxes	7,783		7,903		15,344		64,012
Income tax (expense) benefit	(2,701)		7		(3,785)		(2,596)
Net income	$	5,082	$	7,910	$	11,559	$	61,416