Long-Lived Assets (Tables)

12 Months Ended

Sep. 30, 2016

Long-Lived Assets

Schedule of property, plant and equipment

	Estimated
(in thousands of dollars)	useful lives				2015		2016
Land and improvements	15	-	40	years	$	15,904	$	12,380
Buildings and improvements	5	-	40	years		69,645		70,724
Equipment and vehicles	3	-	20	years		239,759		267,893
Dies and molds	3	-	20	years		85,880		86,941
Construction in progress			—			18,271		25,749
						429,459		463,687
Less accumulated depreciation						(243,741)		(256,895)
Net property, plant and equipment					$	185,718	$	206,792

Schedule of gross carrying amounts and accumulated amortization of intangible assets

					2015				2016
					Gross				Gross
	Estimated				Carrying		Accumulated		Carrying		Accumulated
(in thousands of dollars)	useful lives				Amount		Amortization		Amount		Amortization
Trade names	Indefinite				$	15,300	$	—	$	63,245	$	—
Intellectual property			15	years		—		—		10,102		—
Contracts	15	-	20	years		112,300		69,875		127,520		76,029
Customer relationships	5	-	20	years		109,078		57,844		227,909		67,493
Trade names			20	years		66,960		36,554		66,755		39,744
Patents and patented technologies	6	-	19	years		14,526		12,574		5,401		2,875
Other	5	-	17	years		4,585		2,184		7,035		2,664
					$	322,749	$	179,031	$	507,967	$	188,805

Schedule of total currently estimated annual amortization expense

Year ending September 30:	(in thousands)
2017	$	25,047
2018		25,002
2019		23,980
2020		19,898
2021		19,868

Schedule of goodwill

	Building		Construction
(in thousands)	products		materials		Total
Balances as of September 30, 2014	$	56,687	$	118,899	$	175,586
Goodwill related to 2015 acquisitions		2,687		—		2,687
Adjustments to previously recorded amounts for 2014 acquisitions		390		(464)		(74)
Balances as of September 30, 2015		59,764		118,435		178,199
Goodwill related to 2016 acquisitions		97,331		16,406		113,737
Adjustments to previously recorded amounts for 2015 acquisitions		(1,433)		—		(1,433)
Balances as of September 30, 2016	$	155,662	$	134,841	$	290,503