Note 8.

Goodwill and Other Intangible Assets

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

	Three Months Ended September 30, 2018
	II-VI Laser			II-VI			II- VI Performance
	Solutions			Photonics			Products		Total
Balance-beginning of period	$	103,390		$	114,398		$	52,890	$	270,678
Goodwill acquired		-			24,844			4,001		28,845
Segment Realignment (Note 1)		(4,653	)		(4,728	)		9,381		-
Foreign currency translation		(35	)		(1,180	)		-		(1,215	)
Balance-end of period	$	98,702		$	133,334		$	66,272	$	298,308

The Company used the relative fair value method to reallocate goodwill to the associated reporting units in connection with the realignment of its composition of operating segments as described in Note 1.

The gross carrying amount and accumulated amortization of the Company’s intangible assets other than goodwill as of September 30, 2018 and June 30, 2018 were as follows ($000):

	September 30, 2018							June 30, 2018
	Gross					Net		Gross					Net
	Carrying		Accumulated			Book		Carrying		Accumulated			Book
	Amount		Amortization			Value		Amount		Amortization			Value
Technology and Patents	$	76,245	$	(34,084	)	$	42,161	$	66,812	$	(32,979	)	$	33,833
Trademarks		15,757		(1,503	)		14,254		15,882		(1,471	)		14,411
Customer Lists		133,594		(52,744	)		80,850		127,603		(50,792	)		76,811
Other		1,573		(1,568	)		5		1,573		(1,559	)		14
Total	$	227,169	$	(89,899	)	$	137,270	$	211,870	$	(86,801	)	$	125,069

As a result of the July 1, 2018 segment realignment, the Company reviewed the recoverability of the carrying value of goodwill at its reporting units. The Company performed a quantitative test to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill and other intangible assets. The Company did not record any impairment of goodwill or long-lived assets during the three months ended September 30, 2018, as the quantitative assessment did not indicate deterioration in the fair value of its reporting units.

In conjunction with the acquisition of CoAdna, the Company recorded $9.8 million attributed to the value of technology and patents and $6.3 million of customer lists. The intangibles were recorded based on the Company’s preliminary purchase price allocation utilizing either a discounted cash flow or relief from royalty method to derive the fair value. The valuation is expected to be finalized within one year from the date of acquisition.

Technology and patents are being amortized over a range of 60 to 240 months, with a weighted average remaining life of approximately 86 months. Customer lists are being amortized over a range of approximately 120 to 240 months with a weighted average remaining life of approximately 136 months. The gross carrying amount of trademarks includes $14.0 million of acquired trade names with indefinite lives that are not amortized but tested annually for impairment or more frequently if a triggering event occurs. Included in the gross carrying amount and accumulated amortization of the Company’s intangible assets is the effect of foreign currency translation on that portion of the intangible assets relating to the Company’s foreign subsidiaries.

At September 30, 2018, the estimated amortization expense for the existing intangible assets for each of the five succeeding fiscal years is as follows ($000):

Year Ending June 30,
Remaining 2019	$	12,200
2020		16,000
2021		14,700
2022		12,900
2023		12,500