Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Aug. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Carrying Amount in Goodwill by Segment

($ in thousands)	Irrigation			Infrastructure			Total
Balance as of August 31, 2017	$	60,978		$	16,153		$	77,131
Divestiture of businesses		(12,294	)	—				(12,294	)
Foreign currency translation		(93	)		(73	)		(166	)
Balance as of August 31, 2018		48,591			16,080			64,671
Foreign currency translation		(24	)		(260	)		(284	)
Balance as of August 31, 2019	$	48,567		$	15,820		$	64,387

Schedule of Intangible Assets and Weighted Average Remaining Life Finite and Infinite Excluding Goodwill

	August 31,
	2019							2018
	Weighted		Gross					Weighted		Gross
	average		carrying		Accumulated			average		carrying		Accumulated
($ in thousands)	years		amount		amortization			years		amount		amortization
Amortizable intangible assets:
Patents and developed technology		4.0	$	26,547	$	(21,097	)		5.7	$	26,831	$	(19,656	)
Customer relationships		3.6		16,439		(9,779	)		5.2		16,459		(8,668	)
Non-compete agreements		0.4		1,132		(1,107	)		0.8		1,137		(1,048	)
Other		—		110		(110	)		1.1		110		(85	)
Unamortizable intangible assets:
Tradenames	N/A			12,247		—		N/A			12,297		—
Total		3.8	$	56,475	$	(32,093	)		5.5	$	56,834	$	(29,457	)

Schedule of Future Estimated Amortization of Intangible Assets

Fiscal years	$ in thousands
2020	$	2,527
2021		1,866
2022		1,698
2023		1,595
2024		1,595
Thereafter		2,854
	$	12,135