Goodwill and Intangible Assets, net (Tables)

12 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets

Schedule of goodwill

A reconciliation of our goodwill balance is as follows (in thousands):

	North America					Rest of World					Consolidated
	September 30,					September 30,					September 30,
	2015			2014		2015			2014		2015			2014
Beginning balance	$	779,395		$	555,714	$	82,180		$	6,779	$	861,575		$	562,493
Foreign currency translation	65			—		(7,532		)	43		(7,467		)	43
Haas acquisition	187			223,681		63			75,358		250			299,039
Goodwill impairment	(263,771		)	—		—			—		(263,771		)	—
Ending balance	$	515,876		$	779,395	$	74,711		$	82,180	$	590,587		$	861,575

Schedule of gross amounts and accumulated amortization of intangible assets

As of September 30, 2015 and 2014, the gross amounts and accumulated amortization of intangible assets is as follows (in thousands):

	2015					2014
	Gross		Accumulated			Gross		Accumulated
	Amount		Amortization			Amount		Amortization
Customer relationships (12 to 20 year life)	$	178,858	$	(45,057	)	$	181,687	$	(33,401	)
Trademarks (5 years to indefinite life)	56,153		(3,661		)	56,524		(2,372		)
Backlog (2 year life)	4,327		(4,327		)	4,327		(4,327		)
Non‑compete agreements (3 to 4 year life)	1,457		(1,457		)	1,457		(1,343		)
Technology (10 year life)	33,607		(4,511		)	34,400		(2,007		)
Total intangible assets	$	274,402	$	(59,013	)	$	278,395	$	(43,450	)

Schedule of estimated future amortization expense

Estimated future intangible amortization expense at September 30, 2015 is as follows (in thousands):

2016	$	15,538
2017	15,538
2018	15,538
2019	15,538
2020	15,538
Thereafter	99,866
	$	177,556