Goodwill and Intangible Assets (Tables)

9 Months Ended

Jan. 31, 2014

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Activity and Balances Related to Goodwill

The following table shows the activity and balances related to goodwill from April 30, 2013 through January 31, 2014:


	April 30, 2013		Acquisitions		January 31, 2014
Eastern region (1)	$	16,858	$	558	$	17,416
Western region		86,880		786		87,666
Recycling		12,190		63		12,253
Other		—		1,729		1,729

Total	$	115,928	$	3,136	$	119,064

(1)	Included in Eastern region acquisitions activity is a $33 adjustment related to the December 5, 2012 BBI acquisition due to a finalization of the deferred tax liability for BBI at acquisition.

Components of Intangible Assets

Intangible assets as of January 31, 2014 and April 30, 2013 consist of the following:


	Covenants Not-to-Compete			Client Lists			Total
Balance, January 31, 2014
Intangible assets	$	17,245		$	15,760		$	33,005
Less accumulated amortization		(15,224	)		(3,609	)		(18,833	)

	$	2,021		$	12,151		$	14,172


	Covenants Not-to-Compete			Client Lists			Total
Balance, April 30, 2013
Intangible assets	$	17,043		$	11,660		$	28,703
Less accumulated amortization		(14,800	)		(2,229	)		(17,029	)

	$	2,243		$	9,431		$	11,674

Estimated Amortization Expenses

Intangible amortization expense for the three and the nine months ended January 31, 2014 and 2013 was $695, $353, $1,804 and $751, respectively. The intangible amortization expense estimated for the five fiscal years following fiscal year 2013 and thereafter is as follows:


2014		2015		2016		2017		2018		Thereafter
$	750	$	2,927	$	2,314	$	1,874	$	1,652	$	4,655