Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Sep. 30, 2013

Changes in Carrying Amount of Goodwill

Changes in the carrying amount of goodwill are as follows ($000):

	Three Months Ended September 30, 2013
	Infrared Optics		Near- Infrared Optics		Military & Materials		Advanced Products Group			Active Optical Products			Total
Balance – beginning of period	$	9,677	$	60,269	$	30,712	$	22,694		$	—		$	123,352
Goodwill acquired		—		—		—		—			39,041			38,994
Goodwill adjustment		—		—		—		(516	)		—			(516	)
Foreign currency translation		56		165		—		—			(47	)		221
Balance – end of period	$	9,733	$	60,434	$	30,712	$	22,178		$	38,994		$	162,051

Gross Carrying Amount and Accumulated Amortization

The gross carrying amount and accumulated amortization of the Company’s intangible assets other than goodwill as of September 30, 2013 and June 30, 2013 was as follows ($000):

	September 30, 2013							June 30, 2013
	Gross					Net		Gross					Net
	Carrying		Accumulated			Book		Carrying		Accumulated			Book
	Amount		Amortization			Value		Amount		Amortization			Value
Patents	$	54,749	$	(11,343	)	$	43,406	$	39,659	$	(10,455	)	$	29,204
Trademarks		17,872		(980	)		16,892		17,855		(963	)		16,892
Customer Lists		69,769		(13,552	)		56,217		52,614		(12,189	)		40,425
Other		2,094		(1,429	)		665		1,580		(1,400	)		180
Total	$	144,484	$	(27,304	)	$	117,180	$	111,708	$	(25,007	)	$	86,701

Estimated Amortization Expense for Existing Intangible Assets for Each of Five Succeeding Years

the estimated amortization expense for existing intangible assets for each of the five succeeding fiscal years is as follows ($000):

Year Ending June 30,
Remaining 2014	$	8,396
2015		10,575
2016		10,508
2017		10,499
2018		10,023