Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Jan. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill Balances and Related Activity by Business Segment

Goodwill balances and related activity by business segment are as follows:

	Balance at April 25, 2015		Acquisition Activity and Divestitures		Other Activity			Balance at January 30, 2016
Corporate	$	—	$	—	$	—		$	—
Dental	139,449		—		(1,381		)	138,068
Animal Health	160,475		518,370		(1,597		)	677,248
Total	$	299,924	$	518,370	$	(2,978	)	$	815,316

Balances of Other Intangible Assets Excluding Goodwill

Balances of other intangible assets, excluding goodwill, are as follows:

	January 30, 2016			April 25, 2015
Unamortized – indefinite lived:
Copyrights, trade names and trademarks	$	29,900		$	17,600
Amortized:
Distribution agreement, customer lists and other	638,854			221,359
Less: Accumulated amortization	(146,539		)	(113,934		)
Net amortized intangible assets	492,315			107,425
Total identifiable intangible assets, net	$	522,215		$	125,025