Coherent (COHR) 10-Q 7 Feb 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Dec. 31, 2013	Feb. 03, 2014
Document Information [Line Items]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	31-Dec-13	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Trading Symbol	'IIVI	'
Entity Registrant Name	'II-VI INC	'
Entity Central Index Key	'0000820318	'
Current Fiscal Year End Date	'--06-30	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	62,623,420

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Jun. 30, 2013
In Thousands, unless otherwise specified
Current Assets	'	'
Cash and cash equivalents	$212,683	$185,433
Accounts receivable - less allowance for doubtful accounts of $1,008 at December 31, 2013 and $1,479 at June 30, 2013	113,182	107,173
Inventories	177,136	141,859
Deferred income taxes	11,044	10,794
Prepaid and refundable income taxes	4,449	4,543
Prepaid and other current assets	15,045	11,342
Total Current Assets	533,539	461,144
Property, plant & equipment, net	225,592	170,672
Goodwill	190,525	123,352
Other intangible assets, net	142,747	86,701
Investment	11,581	11,203
Deferred income taxes	2,957	2,696
Other assets	9,220	8,034
Total Assets	1,116,161	863,802
Current Liabilities	'	'
Current portion of long-term debt	20,000	'
Accounts payable	44,726	23,617
Accrued compensation and benefits	29,454	28,315
Accrued income tax payable	6,602	7,697
Deferred income taxes	146	110
Other accrued liabilities	25,397	34,695
Total Current Liabilities	126,325	94,434
Long-term debt	262,858	114,036
Deferred income taxes	13,423	4,095
Other liabilities	46,091	15,129
Total Liabilities	448,697	227,694
Shareholders' Equity	'	'
Preferred stock, no par value; authorized - 5,000,000 shares; none issued	0	'
Common stock, no par value; authorized - 300,000,000 shares; issued - 70,744,108 shares at December 31, 2013; 70,223,286 shares at June 30, 2013	206,593	194,284
Accumulated other comprehensive income	19,973	15,600
Retained earnings	500,141	482,878
Shareholders' equity excluding treasury stock	726,707	692,762
Treasury stock, at cost, 8,144,800 shares at December 31, 2013 and 8,011,733 shares at June 30, 2013	-59,243	-56,654
Total Shareholders' Equity	667,464	636,108
Total Liabilities and Shareholders' Equity	$1,116,161	$863,802

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Jun. 30, 2013
In Thousands, except Share data, unless otherwise specified
Accounts receivable, allowance for doubtful accounts	$1,008	$1,479
Preferred stock, par value	$0	$0
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$0	$0
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	70,744,108	70,223,286
Treasury stock, shares	8,144,800	8,011,733

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Earnings (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Revenues	'	'	'	'
Domestic	$60,569	$51,479	$124,259	$103,762
International	111,196	73,628	197,526	149,343
Total Revenues	171,765	125,107	321,785	253,105
Costs, Expenses and Other Expense (Income)	'	'	'	'
Cost of goods sold	118,371	77,839	212,080	155,438
Internal research and development	11,355	5,626	19,102	11,211
Selling, general and administrative	32,471	26,174	67,564	52,530
Interest expense	1,169	223	1,652	259
Other expense (income), net	-1,125	-4,551	-1,072	-5,312
Total Costs, Expenses and Other Expense (Income)	162,241	105,311	299,326	214,126
Earnings from Continuing Operations Before Income Taxes	9,524	19,796	22,459	38,979
Income Taxes	2,086	6,721	5,329	10,983
Earnings from Continuing Operations	7,438	13,075	17,130	27,996
Earnings (loss) from Discontinued Operation, net of income tax	131	-608	133	-2,397
Net Earnings	7,569	12,467	17,263	25,599
Less: Net Earnings Attributable to Redeemable Noncontrolling Interest	0	267	0	681
Net Earnings Attributable to II-VI Incorporated	$7,569	$12,200	$17,263	$24,918
Earnings (loss) Attributable to II-VI Incorporated: Basic Earnings (loss) Per Share:	'	'	'	'
Continuing Operations	$0.12	$0.20	$0.27	$0.44
Discontinued Operation	$0	($0.01)	$0	($0.04)
Consolidated	$0.12	$0.19	$0.28	$0.40
Earnings (loss) Attributable to II-VI Incorporated: Diluted Earnings (loss) Per Share:	'	'	'	'
Continuing Operations	$0.12	$0.20	$0.27	$0.43
Discontinued Operation	$0	($0.01)	$0	($0.04)
Consolidated	$0.12	$0.19	$0.27	$0.39

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Net earnings	$7,569	$12,467	$17,263	$25,599
Other comprehensive income:	'	'	'	'
Foreign currency translation adjustments	2,158	2,043	4,373	3,122
Comprehensive income	9,727	14,510	21,636	28,721
Net earnings attributable to redeemable noncontrolling interest	0	267	0	681
Other comprehensive income (loss) attributable to redeemable noncontrolling interest:	'	'	'	'
Foreign currency translation adjustment attributable to redeemable noncontrolling interest	0	57	0	-216
Comprehensive income attributable to redeemable noncontrolling interest	0	324	0	465
Comprehensive income attributable to II-VI Incorporated	$9,727	$14,186	$21,636	$28,256

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities	'	'
Net earnings	$17,263	$25,599
Adjustments to reconcile net earnings to net cash provided by operating activities:	'	'
(Earnings) loss from discontinued operation, net of tax	-133	2,397
Depreciation	20,656	16,793
Amortization	5,577	2,374
Share-based compensation expense	7,195	6,534
Loss on foreign currency remeasurements and transactions	638	810
Earnings from equity investment	-378	-593
Deferred income taxes	-1,862	2,307
Excess tax benefits from share-based compensation expense	-416	-387
Increase (decrease) in cash from changes in:	'	'
Accounts receivable	-4,739	19,665
Inventories	1,207	-8,683
Accounts payable	18,764	-4,894
Income taxes	-3,588	1,688
Other operating net assets	-5,507	-4,062
Continuing Operations	54,677	59,548
Discontinued Operation	1,197	1,429
Net cash provided by operating activities	55,874	60,977
Cash Flows from Investing Activities	'	'
Additions to property, plant & equipment	-14,289	-13,144
Purchases of businesses, net of cash acquired	-175,201	-126,397
Proceeds received on contractual settlement from Thailand flood	0	2,436
Other investing activities	0	1,465
Continuing Operations	-189,490	-135,640
Discontinued Operation	0	-33
Net cash used in investing activities	-189,490	-135,673
Cash Flows from Financing Activities	'	'
Proceeds from borrowings	183,000	113,000
Payments on borrowings	-14,000	-1,000
Payment on earnout arrangement	-2,200	'
Payments of redeemable noncontrolling interest	-8,789	-217
Proceeds from exercises of stock options	2,805	1,625
Purchases of treasury stock	0	-10,840
Payment of deferred financing costs	-950	-560
Minimum tax withholding requirements	-740	-137
Excess tax benefits from share-based compensation expense	416	387
Net cash provided by financing activities	159,542	102,258
Effect of exchange rate changes on cash and cash equivalents	1,324	304
Net increase in cash and cash equivalents	27,250	27,866
Cash and Cash Equivalents at Beginning of Period	185,433	134,944
Cash and Cash Equivalents at End of Period	212,683	162,810
Cash paid for interest	1,617	184
Cash paid for income taxes	9,123	6,379
Non cash transactions:	'	'
Purchase of business - holdback amount recorded in other accrued liabilities	2,000	'
Purchase of business - holdback amount recorded in other liabilities	10,000	'
Capital lease obligation incurred on facility lease	12,005	'
Purchase of business utilizing earnout arrangement recorded in other liabilities	0	4,200
Purchase of business utilizing deferred purchae price recorded in other accrued liabilities	$0	$700

Condensed_Consolidated_Stateme3

Condensed Consolidated Statement of Shareholders' Equity (USD $)	Total	Common Stock	Accumulated Other Comprehensive Income	Retained Earnings	Treasury Stock
In Thousands
Beginning Balance at Jun. 30, 2013	$636,108	$194,284	$15,600	$482,878	($56,654)
Beginning Balance, shares at Jun. 30, 2013	'	70,223	'	'	-8,012
Shares issued under share-based compensation plans (in shares)	'	521	'	'	'
Shares issued under share-based compensation plans	2,908	2,908	'	'	'
Minimum tax withholding requirements, (in shares)	'	'	'	'	-42
Minimum tax withholding requirements	-799	'	'	'	-799
Share-based compensation expense	7,195	7,195	'	'	'
Net earnings	17,263	'	'	17,263	'
Treasury stock in deferred compensation plan, (in shares)	'	'	'	'	-91
Treasury stock under deferred compensation arrangements	'	1,790	'	'	-1,790
Excess tax benefits from share-based compensation expense	416	416	'	'	'
Foreign currency translation adjustments	4,373	'	4,373	'	'
Ending Balance at Dec. 31, 2013	$667,464	$206,593	$19,973	$500,141	($59,243)
Ending Balance, shares at Dec. 31, 2013	'	70,744	'	'	-8,145

Basis_of_Presentation

Basis of Presentation	6 Months Ended
	Dec. 31, 2013
Basis of Presentation	'
	Note  1.	Basis of Presentation
	The condensed consolidated financial statements of II-VI Incorporated (“II-VI” or the “Company”) for the three and six months ended December 31, 2013 and 2012 are unaudited. In the opinion of management, all adjustments considered necessary for a fair presentation for the periods presented have been included. All adjustments are of a normal recurring nature unless disclosed otherwise. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2013. The consolidated results of operations for the three and six months ended December 31, 2013 are not necessarily indicative of the results to be expected for the full fiscal year. The June 30, 2013 Condensed Consolidated Balance Sheet information was derived from the Company’s audited financial statements.
	In conjunction with the acquisitions of Oclaro, Inc.’s (“Oclaro”) Switzerland-based semiconductor laser business on September 12, 2013, and Oclaro’s fiber amplifier and micro-optics business on November 1, 2013, the Company has established a new reporting segment “Active Optical Products” which reports the operating results of these two recently acquired businesses.

Discontinued_Operation

Discontinued Operation	6 Months Ended
	Dec. 31, 2013
Discontinued Operation	'
	Note  2.	Discontinued Operation
	During the three months ended December 31, 2013, the Company completed the discontinuance of its tellurium product line by exiting all business activities associated with this product line.  This product line was previously serviced by PRM and was included as part of the Military & Materials segment.   Prior periods have been restated to present this product line on a discontinued operation basis.   The revenues and earnings (losses) of the tellurium product line have been reflected as a discontinued operation for the periods presented as follows: ($000):
		Three Months Ended					Six Months Ended
		December 31,					December 31,
		2013		2012			2013		2012
	Revenues	$	697	$	782		$	1,849	$	5,076
	Earnings (loss) from discontinued operation before income taxes	131			(533	)	133			(2,397	)
	Income tax benefit (expense)		-		(75	)		-		-
	Earnings from discontinued operation, net of taxes	$	131	$	(608	)	$	133	$	(2,397	)

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	6 Months Ended
	Dec. 31, 2013
Recent Accounting Pronouncements	'
	Note  3.	Recent Accounting Pronouncements
	In March 2013, the Financial Accounting Standards Board (“FASB”) issued an accounting standards update related to a parent’s accounting for the cumulative translation adjustment upon de-recognition of certain subsidiaries or groups of assets within a foreign entity or of an investment in a foreign entity. The update clarifies the applicable guidance under current U.S. GAAP for the release of the cumulative translation adjustment upon a reporting entity’s de-recognition of a subsidiary or group of assets within a foreign entity or part or all of its investment in a foreign entity. The update requires a reporting entity, which either sells a part or all of its investment in a foreign entity or ceases to have a controlling financial interest in a subsidiary or group of assets within a foreign entity, to release any related cumulative translation adjustment into net income. This update is effective prospectively for fiscal years beginning after December 15, 2013 and will be effective for the Company beginning in the first quarter of fiscal year 2015. The adoption of this standard is not expected to have a significant impact on the Company’s consolidated financial statements.
	In February 2013, the FASB issued an accounting standards update related to disclosure requirements of reclassifications out of accumulated other comprehensive income. The adoption of the guidance requires the Company to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, the Company is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified from each component of accumulated other comprehensive income and the income statement line items affected by the reclassification. This update was effective for the Company beginning in the first quarter of fiscal year 2014 and did not have a significant impact on the Company’s consolidated financial statements.

Acquisitions

Acquisitions	6 Months Ended
	Dec. 31, 2013
Acquisitions	'
	Note  4.	Acquisitions
	Oclaro’s Fiber Amplifier and Micro-Optics Business
	In November 2013, the Company acquired certain assets of Oclaro used in the fiber amplifier and micro-optics business. The total consideration consisted of $88.6 million. At closing the Company paid $79.6 million in cash, a $4.0 million holdback by the Company for 14 months to address any post-closing adjustments or claims, with the remaining $5.0 million previously paid to Oclaro, Inc. on September 12, 2013. The Company operates the business under the name II-VI Network Solutions Division (“Network Solutions”) and includes it with II-VI Laser Enterprise, GmbH in the Company’s new operating segment, Active Optical Products. Network Solutions is a manufacturer of fiber amplifiers and micro-optics used in the optical communications market. Due to the timing of the acquisition, the Company is still in the process of completing its fair market valuation, including the valuation of certain tangible and intangible assets as well as deferred income taxes. The purchase price of the Network Solutions acquisition is summarized as follows ($000):
	Net cash paid at acquisition date	$	79,600
	Cash previously paid		5,000
	Holdback amount recorded in Other liabilities		4,000
	Purchase price	$	88,600
	The following table presents the preliminary allocation of the purchase price of the assets acquired at the date of acquisition, as the Company intends to finalize its accounting for the acquisition of Network Solutions during fiscal year 2014 ($000):
	Assets
	Inventories	$	11,314
	Property, plant & equipment		20,546
	Intangible assets		28,795
	Goodwill		27,945
	Total assets acquired	$	88,600
	The goodwill of $27.9 million is included in the Active Optical Products segment and is attributed to the expected synergies and the assembled workforce of Network Solutions. All of the goodwill is deductible for income tax purposes.
	The amount of revenues and net loss from operations of Network Solutions included in the Company’s Condensed Consolidated Statement of Earnings for the three months ended December 31, 2013 was $13.2 million and $1.4 million, respectively.
	Oclaro’s Switzerland-Based Semiconductor Laser Business
	In September 2013, the Company acquired all of the outstanding shares of Oclaro Switzerland GmbH, a limited liability company formed under the laws of the Swiss confederation, as well as certain additional assets of Oclaro. used in the semiconductor laser business. The total consideration consisted of $90.6 million, net of cash acquired of $1.7 million, a $6.0 million holdback amount by the Company for 15 months to address any post-closing adjustments or claims, and a $2.0 million holdback amount for potential post-closing working capital adjustments. The Company operates the acquired business under the name Laser Enterprise and includes it in the Company’s new operating segment, Active Optical Products. Laser Enterprise is a manufacturer of high-power semiconductor laser components enabling fiber and direct diode laser systems for material processing, medical, consumer and printing applications. In addition, the segment manufactures pump lasers for optical amplifiers for both terrestrial and submarine applications and vertical cavity surface emitting lasers (VCSELS) for optical navigation, optical interconnects and optical sensing applications.
	Due to the timing of the acquisition, the Company is still in the process of completing its fair market valuation, including the valuation of certain tangible and intangible assets as well as deferred income taxes. The purchase price of the Laser Enterprise acquisition is summarized as follows ($000):
	Net cash paid at acquisition date	$	90,601
	Holdback amount recorded in Other accrued liabilities		2,000
	Holdback amount recorded in Other liabilities		6,000
	Purchase price	$	98,601
	The following table presents the preliminary allocation of the purchase price of the assets acquired and liabilities assumed at the date of acquisition, as the Company intends to finalize its accounting for the acquisition of Laser Enterprise during fiscal year 2014 ($000):
	Assets
	Inventories	$	26,071
	Prepaid and other assets		1,963
	Deferred income taxes		2,371
	Property, plant & equipment		28,068
	Intangible assets		32,593
	Goodwill		39,206
	Total assets acquired	$	130,272
	Liabilities
	Accounts payable	$	2,214
	Deferred income taxes		13,467
	Accrued income taxes		2,714
	Other accrued liabilities		13,276
	Total liabilities assumed	$	31,671
	Net assets acquired	$	98,601
	The goodwill of Laser Enterprise of $39.2 million is included in the Active Optical Products segment and is attributed to the expected synergies and the assembled workforce of Laser Enterprise. None of the goodwill is deductible for income tax purposes.
	The amount of revenues and net loss from operations of Laser Enterprise included in the Company’s Condensed Consolidated Statement of Earnings for the three months ended December 31, 2013 was $20.2 million and $3.3 million, respectively, and was $25.0 million and $4.0 million, respectively, for the six months ended December 31, 2013.
	In conjunction with the acquisitions of Network Solutions and Laser Enterprise, the Company expensed transactions costs of approximately $0.3 million and $3.7 million, net of tax, for the three and six months ended December 31, 2013, respectively.  These costs were recorded within selling, general and administrative expenses in the Condensed Consolidated Statements of Earnings.
	Pro Forma Information
	The following unaudited pro forma consolidated results of operations for the three months ended December 31, 2013 and 2012 have been prepared as if the acquisitions of Network Solutions and Laser Enterprise had occurred on July 1, 2012, the beginning of the Company’s fiscal year 2013, which is the fiscal year prior to this acquisition. As a result, certain transaction related expenses of $0.3 million and $3.7 million (net of tax) for the three and six months periods were only included in the earliest periods presented below ($000 except per share data).
		Three Months Ended				Six Months Ended
		December 31,				December 31,
		2013		2012		2013		2012
	Net revenues	$	181,204	$	170,457	$	373,436	$	343,804
	Earnings from continuing operations attributable to II-VI Incorporated		10,912		10,032		25,493		16,272
	Basic earnings per share from continuing operations attributable to II-VI Incorporated		0.17		0.16		0.41		0.26
	Diluted earnings per share from continuing operations attributable to II-VI Incorporated		0.17		0.16		0.4		0.25
	The pro forma results are not necessarily indicative of what actually would have occurred if the transactions had occurred as described above, are not intended to be a projection of future results and do not reflect any cost savings that might be achieved from the combined operations.

Investment

Investment	6 Months Ended
	Dec. 31, 2013
Investment	'
	Note  5.	Investment
	The Company has an equity investment in Guangdong Fuxin Electronic Technology (“Fuxin”) based in Guangdong Province, China of 20.2%, which is accounted for under the equity method of accounting. The total carrying value of the investment recorded at December 31, 2013 and June 30, 2013 was $11.6 million and $11.2 million, respectively. During the three months ended December 31, 2013 and 2012, the Company’s pro-rata share of earnings from this investment was $0.1 million and $0.2 million, respectively, and was $0.4 million and $0.6 million during the six months ended December 31, 2013 and 2012, respectively, and were recorded in Other expense (income), net in the Condensed Consolidated Statements of Earnings.

Inventories

Inventories	6 Months Ended
	Dec. 31, 2013
Inventories	'
	Note  6.	Inventories
	The components of inventories were as follows ($000):
		December 31,		June 30,
		2013		2013
	Raw materials	$	67,101	$	59,290
	Work in progress		58,637		43,895
	Finished goods		51,398		38,674
		$	177,136	$	141,859

Property_Plant_and_Equipment

Property, Plant and Equipment	6 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment	'
	Note  7.	Property, Plant and Equipment
	Property, plant and equipment consists of the following ($000):
		December 31,			June 30,
		2013			2013
	Land and land improvements	$	2,381		$	2,236
	Buildings and improvements		96,532			87,189
	Machinery and equipment		340,470			276,802
	Construction in progress		11,834			10,831
			451,217			377,058
	Less accumulated depreciation		(225,625	)		(206,386	)
		$	225,592		$	170,672

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	6 Months Ended
	Dec. 31, 2013
Goodwill and Other Intangible Assets	'
	Note  8.	Goodwill and Other Intangible Assets
	Changes in the carrying amount of goodwill are as follows ($000):
		Six Months Ended December 31, 2013
						Near-			Military		Advanced			Active
		Infrared				Infrared			&		Products			Optical
		Optics				Optics			Materials		Group			Products			Total
	Balance-beginning of period	$	9,677			$	60,269		$	30,712	$	22,694		$	-		$	123,352
	Goodwill acquired		-				-			-		-			67,151			67,151
	Goodwill adjustment		-				-			-		(516	)		-			(516	)
	Foreign currency translation		94				444			-		-			-			538
	Balance-end of period	$	9,771			$	60,713		$	30,712	$	22,178		$	67,151		$	190,525
	The Company reviews the recoverability of goodwill at least annually and any time business conditions indicate a potential change in recoverability. The measurement of a potential impairment begins with comparing the current fair value of the Company’s reporting units to the recorded value (including goodwill). The Company uses a discounted cash flow model (“DCF model”) and a market analysis to determine the current fair value of its reporting units. A number of significant assumptions and estimates are involved in estimating the forecasted cash flows used in the DCF model, including markets and market shares, sales volume and pricing, costs to produce, working capital changes and income tax rates. Management considers historical experience and all available information at the time the fair values of the reporting units are estimated. However, actual fair values that could be realized could differ from those used to evaluate the impairment of goodwill.
	In connection with the acquisitions of Laser Enterprise in September 2013 and Network Solutions in November 2013, the Company recorded the excess purchase price over the net assets of the businesses acquired as goodwill in the accompanying Condensed Consolidated Balance Sheet, based on preliminary purchase price allocations.
	During the six months ended December 31, 2013, the Company recorded an adjustment to goodwill of $0.5 million associated with the November 2012 acquisition of M Cubed Technologies, Inc (“M Cubed”). This adjustment related to a change in deferred income tax assets and was recorded in conjunction with the finalization and filing of the M Cubed final income tax return.
	The gross carrying amount and accumulated amortization of the Company’s intangible assets other than goodwill as of December 31, 2013 and June 30, 2013 was as follows ($000):
		31-Dec-13									30-Jun-13
		Gross							Net		Gross						Net
		Carrying				Accumulated			Book		Carrying			Accumulated			Book
		Amount				Amortization			Value		Amount			Amortization			Value
	Technology and Patents	$	68,128			$	(12,797	)	$	55,331	$	39,659		$	(10,455	)	$	29,204
	Trademarks		17,902				(1,001	)		16,901		17,855			(963	)		16,892
	Customer Lists		84,943				(15,494	)		69,449		52,614			(12,189	)		40,425
	Other		2,532				(1,466	)		1,066		1,580			(1,400	)		180
	Total	$	173,505			$	(30,758	)	$	142,747	$	111,708		$	(25,007	)	$	86,701
	In conjunction with the acquisitions of Laser Enterprise and Network Solutions, the Company recorded $28.3 million of technology and patents, $32.1 million of customer lists and $1.0 million related to non-compete agreements. These intangibles assets were recorded based on the Company’s preliminary purchase price allocations which are expected to be finalized during fiscal year 2014.
	Amortization expense recorded on the Company’s intangible assets was $3.4 million and $5.6 million, for the three and six months ended December 31, 2013 and was $1.3 million and $2.4 million for the three and six months ended December 31, 2012, respectively. The technology and patents are being amortized over a range of 120 to 240 months with a weighted average remaining life of approximately 121 months. The customer lists are being amortized over a range of approximately 120 months to 192 months with a weighted average remaining life of approximately 122 months. The gross carrying amount of trademarks includes $16.4 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 German subsidiaries as well as Photop and AOFR Pty. Ltd. (“Photop AOFR”).
	At December 31, 2013, 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			$	7,038
	2015				13,499
	2016				13,432
	2017				13,423
	2018				12,947

Debt

Debt	6 Months Ended
	Jun. 30, 2013
Debt	'
	Note  9.	Debt
	The components of debt for the periods indicated were as follows ($000):
		December 31,			June 30,
		2013			2013
	Line of credit, interest at LIBOR, as defined, plus 1.50% and 1.25%, respectively	$	185,000		$	111,000
	Term loan, interest at LIBOR, as defined, plus 1.25%		95,000			-
	Yen denominated line of credit, interest at LIBOR, as defined, plus 1.50% and 1.25%, respectively		2,858			3,036
	Total debt		282,858			114,036
	Current portion of long-term debt		(20,000	)		-
	Long-term debt, less current portion	$	262,858		$	114,036
	On September 10, 2013, the Company amended and restated its existing credit agreement. The Second Amended and Restated Credit Agreement (the “Amended Credit Facility”) provides for a revolving credit facility of $225 million (increased from $140 million), as well as a $100 million Term Loan. The Term Loan shall be re-paid in consecutive quarterly principal payments on the first business day of each January, April, July and October, with the first payment commencing on October 1, 2013, as follows: (i) twenty consecutive quarterly installments of $5 million and (ii) a final installment of all remaining principal due and payable on the maturity date. The Amended Credit Facility is unsecured, but is guaranteed by each existing and subsequently acquired or organized wholly-owned domestic subsidiary of the Company. The Company has the option to request an increase to the size of the Amended Credit Facility in an aggregate additional amount not to exceed $100 million. The Amended Credit Facility has a five-year term through September 2018 and has an interest rate of LIBOR, as defined in the agreement, plus 0.75% to 1.75% based on the Company’s ratio of consolidated indebtedness to consolidated EBITDA. Additionally, the facility is subject to certain covenants, including those relating to minimum interest coverage and maximum leverage ratios. As of December 31, 2013, the Company was in compliance with all financial covenants under its Amended Credit Facility.
	In conjunction with entering into the Amended Credit Facility, the Company incurred approximately $1.0 million of deferred financing costs which are being amortized over the term of the agreement. As a result of the overall increase in borrowing capacity, existing deferred financing costs at the time of the amendment of $0.5 million are also being amortized over the term of the Amended Credit Facility.
	The Company’s Yen denominated line of credit is a 500 million Yen facility that has a five-year term through June 2016 and has an interest rate equal to LIBOR, as defined in the loan agreement, plus 0.625% to 1.50%. At December 31, 2013 and June 30, 2013, the Company had 300 million Yen borrowed. Additionally, the facility is subject to certain covenants, including those relating to minimum interest coverage and maximum leverage ratios. As of December 31, 2013, the Company was in compliance with all financial covenants under its Yen facility.
	The Company had aggregate availability of $40.5 million and $29.8 million under its lines of credit as of December 31, 2013 and June 30, 2013, respectively. The amounts available under the Company’s lines of credit are reduced by outstanding letters of credit. As of December 31, 2013 and June 30, 2013, total outstanding letters of credit supported by the credit facilities were $1.5 million and $1.3 million, respectively.
	The weighted average interest rate of total borrowings was 1.7% and 1.2% for the six months ended December 31, 2013 and 2012, respectively.
	Remaining annual principal payments under the Company’s existing credit facilities as of December 31, 2013 were as follows:
								U.S.
								Dollar
			Term			Yen Line		Line of
	Period		Loan			of Credit		Credit		Total
	Year 1		$	20,000		$	-	$	-	$	20,000
	Year 2			20,000			-		-		20,000
	Year 3			20,000			2,858		-		22,858
	Year 4			20,000			-		-		20,000
	Year 5			15,000			-		185,000		200,000
	Total		$	95,000		$	2,858	$	185,000	$	282,858

Income_Taxes

Income Taxes	6 Months Ended
	Dec. 31, 2013
Income Taxes	'
	Note  10.	Income Taxes
	The Company’s year-to-date effective income tax rate from continuing operations at December 31, 2013 and 2012 was 23.7% and 28.2%, respectively. The variations between the Company’s effective tax rate from continuing operations and the U.S. statutory rate of 35.0% were primarily due to the consolidation of the Company’s foreign operations, which are subject to income taxes at lower statutory rates. A change in the mix of pretax income from these various tax jurisdictions could have a material impact on the Company’s effective tax rate.
	U.S. GAAP clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements and prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. As of December 31, 2013 and June 30, 2013, the Company’s gross unrecognized income tax benefit was $3.6 million and $3.3 million, respectively. The Company has classified the uncertain tax positions as noncurrent income tax liabilities, as the amounts are not expected to be paid within one year. If recognized, substantially all of the gross unrecognized tax benefits at December 31, 2013 would impact the effective tax rate. The Company recognizes interest and penalties related to uncertain tax positions in the income tax provision on the Condensed Consolidated Statements of Earnings. The amount of accrued interest and penalties included in the $3.6 million and $3.3 million of gross unrecognized income tax benefit at December 31, 2013 and June 30, 2013 was immaterial. Fiscal years 2010 to 2013 remain open to examination by the United States Internal Revenue Service, fiscal years 2008 to 2013 remain open to examination by certain state jurisdictions, and fiscal years 2005 to 2013 remain open to examination by certain foreign taxing jurisdictions.

Earnings_Per_Share

Earnings Per Share	6 Months Ended
	Dec. 31, 2013
Earnings Per Share	'
	Note  11.	Earnings Per Share
	The following table sets forth the computation of earnings per share attributable to II-VI Incorporated for the periods indicated. Weighted average shares issuable upon the exercises of stock options and the release of performance and restricted shares that were not included in the calculation were approximately 452,000 and 378,000, respectively, for the three and six months ended December 31, 2013, and 450,000 and 433,000, respectively, for the three and six months ended December 31, 2012, because they were anti-dilutive ($000 except per share data):
		Three Months Ended					Six Months Ended
		December 31,					December 31,
		2013		2012			2013		2012
	Earnings from continuing operations attributable to II-VI Incorporated	$	7,438	$	12,808		$	17,130	$	27,315
	Earnings (loss) from discontinued operation		131		(608	)		133		(2,397	)
	Net earnings attributable to II-VI Incorporated	$	7,569	$	12,200		$	17,263	$	24,918
	Divided by:
	Weighted average shares		62,563		62,580			62,471		62,683
	Basic earnings (loss) attributable to II-VI Incorporated per common share:
	Continuing operations	$	0.12	$	0.2		$	0.27	$	0.44
	Discontinued operation	$	-	$	(0.01	)	$	-	$	(0.04	)
	Consolidated	$	0.12	$	0.19		$	0.28	$	0.4
	Earnings from continuing operations attributable to II-VI Incorporated	$	7,438	$	12,808		$	17,130	$	27,315
	Earnings (loss) from discontinued operation		131		(608	)		133		(2,397	)
	Net earnings attributable to II-VI Incorporated	$	7,569	$	12,200		$	17,263	$	24,918
	Divided by:
	Weighted average shares		62,563		62,580			62,471		62,683
	Dilutive effect of common stock equivalents		1,372		1,442			1,470		1,427
	Diluted weighted average common shares		63,935		64,022			63,941		64,110
	Diluted earnings (loss) attributable to II-VI Incorporated per common share:
	Continuing operations	$	0.12	$	0.2		$	0.27	$	0.43
	Discontinued operation	$	-	$	(0.01	)	$	-	$	(0.04	)
	Consolidated	$	0.12	$	0.19		$	0.27	$	0.39

Segment_Reporting

Segment Reporting	6 Months Ended
	Dec. 31, 2013
Segment Reporting	'
	Note  12.	Segment Reporting
	The Company reports its business segments using the “management approach” model for segment reporting. The Company determines its reportable business segments based on the way the chief operating decision maker organizes business segments within the Company for making operating decisions and assessing performance.
	In conjunction with the acquisitions of Oclaro, Inc.’s Switzerland-based semiconductor laser business on September 12, 2013 and Network Solutions on November 1, 2013, the Company has established a new reporting segment “Active Optical Products” which reports the operating results of the Company’s recently acquired businesses.
	The Company has five reportable segments as of December 31, 2013. The Company’s chief operating decision maker receives and reviews financial information in this format. The Company evaluates business segment performance based upon reported business segment earnings, which is defined as earnings from continuing operations before income taxes, interest and other income or expense. The segments are managed separately due to the production requirements and facilities unique to each segment. The Company has the following reportable segments at December 31, 2013: (i) Infrared Optics, which consists of the Company’s infrared optics and material products businesses, HIGHYAG Lasertechnologies, GmbH (“HIGHYAG”) and certain remaining corporate activities, primarily corporate assets and capital expenditures; (ii) Near-Infrared Optics, which consists of Photop, Photop Aegis, Inc. (“Photop Aeigs”) and Photop AOFR; (iii) Military & Materials, which consists of the Company’s LightWorks Optical Systems (formerly the Company’s EEO and LightWorks Optical Systems subsidiaries, “LWOS”), VLOC Incorporated (“VLOC”), Max Levy Autograph, Inc. (“MLA”) and PRM; (iv) Advanced Products Group, which is comprised of the Company’s Marlow Industries, Inc. (“Marlow”), M Cubed, the Wide Bandgap Materials Group (“WBG”) and the Worldwide Materials Group (“WMG”), which is responsible for corporate research and development activities; and (v) Active Optical Products which consists of Laser Enterprise and Network Solutions.
	During the three months ended December 31, 2013, the Company completed the discontinuance of its tellurium product line by exiting all business activities associated with this product line.    This product line was previously serviced by PRM and was included as part of the Military & Materials segment.   Segment information for all periods presented has been adjusted to properly reflect the tellurium product as a discontinued operation.
	The Infrared Optics segment is divided into geographic locations in the U.S., Singapore, China, Germany, Switzerland, Japan, Belgium, the U.K. and Italy. The Infrared Optics segment is directed by a general manager, while each geographic location is also directed by a general manager, and is further divided into production and administrative units that are directed by managers. The Infrared Optics segment designs, manufactures and markets optical and electro-optical components and materials sold under the II-VI brand name and used primarily in high-power CO2 lasers. The Infrared Optics segment also manufactures fiber-delivered beam delivery systems and processing tools for industrial lasers sold under the HIGHYAG brand name.
	The Near-Infrared Optics segment is located in the U.S., China, Vietnam, Australia, Germany, Japan, the U.K., Italy and Hong Kong. The Near-Infrared Optics segment is directed by the Corporate Chief Operating Officer and is further divided into production and administrative units that are directed by managers. The Near-Infrared Optics segment manufactures crystal materials, optics, microchip lasers and opto-electronic modules for use in optical communication networks and other diverse consumer and commercial applications sold under the Photop brand name and manufactures tunable optical devices and couplers and combiners required for high speed optical networks sold under the Photop Aegis and Photop AOFR brand names, respectively.
	The Military & Materials segment is located in the U.S. and the Philippines. The Military & Materials segment is directed by a Corporate Vice President, while each geographic location is directed by a general manager. The Military & Materials segment is further divided into production and administrative units that are directed by managers. The Military & Materials segment designs, manufactures and markets ultra-violet to infrared optical components and high-precision optical assemblies for military, medical and commercial laser and imaging applications under the LWOS and VLOC brand names and manufactures and markets micro-fine conductive mesh patterns for optical, mechanical, and ceramic components for applications under the MLA brand name. The segment also refines selenium metals for internal consumption and a rare earth element under the PRM brand name.
	The Advanced Products Group is located in the U.S., Vietnam, Japan, China and Germany and is directed by the Corporate Chief Operating Officer. In the Advanced Products Group segment, Marlow designs and manufactures thermoelectric cooling and power generation solutions for use in defense and space, optical communications, medical, consumer and industrial markets. M Cubed develops advanced ceramic materials and precision motion control products addressing the semiconductor, display, industrial and defense markets. WBG manufactures and markets single crystal silicon carbide substrates for use in solid-state lighting, wireless infrastructure, radio frequency (“RF”) electronics and power switching industries. WMG directs the corporate research and development initiatives.
	The Active Optical Products segment is located in Switzerland, China, the U.S., Italy, Japan and the U.K. The Active Optical Products segment is directed by the Corporate Chief Operating Officer. Laser Enterprise manufactures high-power semiconductor laser components enabling fiber and direct diode laser systems for material processing, medical, consumer and printing applications. In addition, the Laser Enterprise manufactures pump lasers for optical amplifiers for both terrestrial and submarine applications and VCSELS for optical navigation, optical interconnects and optical sensing applications. Network Solutions manufacturers optical amplifiers and micro-optics for both terrestrial and submarine applications within the optical communications market.
	The accounting policies of the segments are the same as those of the Company. All of the Company’s corporate expenses are allocated to the segments. The Company evaluates segment performance based upon reported segment earnings, which is defined as earnings from continuing operations before income taxes, interest and other income or expense. Inter-segment sales and transfers have been eliminated.
	The following tables summarize selected financial information of the Company’s operations by segment ($000):
		Three Months Ended December 31, 2013
				Near-		Military			Advanced			Active
		Infrared		Infrared		&			Products			Optical
		Optics		Optics		Materials			Group			Products			Eliminations			Total
	Revenues	$	49,206	$	35,857	$	24,482		$	28,834		$	33,386		$	-		$	171,765
	Inter-segment revenues		189		483		1,439			1,838			-			(3,949	)		-
	Segment earnings (loss)		7,847		2,530		3,469			2,520			(6,798	)		-			9,568
	Interest expense		-		-		-			-			-			-			(1,169	)
	Other income, net		-		-		-			-			-			-			1,125
	Income taxes		-		-		-			-			-			-			(2,086	)
	Earnings from discontinued operation		-		-		-			-			-			-			131
	Net earnings		-		-		-			-			-			-			7,569
	Depreciation and amortization		2,212		4,137		2,086			2,512			3,450			-			14,397
	Segment assets		255,688		309,594		126,355			177,167			247,357			-			1,116,161
	Expenditures for property, plant and equipment		3,021		2,914		611			719			451			-			7,716
	Investment		-		-		-			11,581			-			-			11,581
	Goodwill		9,771		60,713		30,712			22,178			67,151			-			190,525
		Three Months Ended December 31, 2012
				Near-		Military			Advanced
		Infrared		Infrared		&			Products
		Optics		Optics		Materials			Group			Eliminations			Total
	Revenues	$	45,410	$	36,996	$	20,578		$	22,123		$	-		$	125,107
	Inter-segment revenues		651		636		798			1,376			(3,461	)		-
	Segment earnings (loss)		10,532		5,141		(542	)		337			-			15,468
	Interest expense		-		-		-			-			-			(223	)
	Other income, net		-		-		-			-			-			4,551
	Income taxes		-		-		-			-			-			(6,721	)
	Loss from discontinued operation		-		-		-			-			-			(608	)
	Net earnings		-		-		-			-			-			12,467
	Depreciation and amortization		2,168		4,385		1,554			2,022			-			10,129
	Expenditures for property, plant and equipment		1,448		2,558		660			2,566			-			7,232
		Six Months Ended December 31, 2013
				Near-		Military			Advanced			Active
		Infrared		Infrared		&			Products			Optical
		Optics		Optics		Materials			Group			Products			Eliminations			Total
	Revenues	$	101,807	$	75,744	$	50,754		$	55,312		$	38,168		$	-		$	321,785
	Inter-segment revenues		463		768		3,310			3,358			-			(7,899	)		-
	Segment earnings (loss)		18,691		5,619		6,877			2,834			(10,982	)		-			23,039
	Interest expense		-		-		-			-			-			-			(1,652	)
	Other income, net		-		-		-			-			-			-			1,072
	Income taxes		-		-		-			-			-			-			(5,329	)
	Earnings from discontinued operation		-		-		-			-			-			-			133
	Net earnings		-		-		-			-			-			-			17,263
	Depreciation and amortization		4,346		8,748		4,165			4,999			3,975			-			26,233
	Expenditures for property, plant and equipment		4,912		5,442		1,739			1,550			646			-			14,289
		Six Months Ended December 31, 2012
				Near-		Military			Advanced
		Infrared		Infrared		&			Products
		Optics		Optics		Materials			Group			Eliminations			Total
	Revenues	$	96,966	$	77,642	$	40,219		$	38,278		$	-		$	253,105
	Inter-segment revenues		1,151		968		2,338			2,560			(7,017	)		-
Segment earnings (loss)		22,374		12,863		(826	)		(485	)		-			33,926
Interest expense		-		-		-			-			-			(259	)
Other income, net		-		-		-			-			-			5,312
Income taxes		-		-		-			-			-			(10,983	)
Loss from discontinued operation		-		-		-			-			-			(2,397	)
Net earnings		-		-		-			-			-			25,599
Depreciation and amortization		4,232		8,672		3,007			3,256			-			19,167
Expenditures for property, plant and equipment		2,588		4,203		1,973			4,380			-			13,144

ShareBased_Compensation

Share-Based Compensation	6 Months Ended
	Dec. 31, 2013
Share-Based Compensation	'
	Note 13.	Share-Based Compensation
	The Board of Directors adopted the II-VI Incorporated 2012 Omnibus Incentive Plan (the “Plan”) which was approved by the shareholders of the Company. The Plan provides for the grant of non-qualified stock options, stock appreciation rights, restricted share awards, restricted share units, deferred share awards, performance share awards and performance share units to employees, officers and directors of the Company. The Company records share-based compensation expense for these awards in accordance with U.S. GAAP, which requires the recognition of the fair value of share-based compensation in net earnings. The Company recognizes the share-based compensation expense over the requisite service period of the individual grantees, which generally equals the vesting period.
	Share-based compensation expense is allocated approximately 20% to cost of goods sold and 80% to selling, general and administrative expense based on the employee classification of the grantees. Share-based compensation expense for the periods indicated was as follows ($000):
		Three Months Ended			Three Months Ended			Six Months Ended			Six Months Ended
		31-Dec-13			31-Dec-12			31-Dec-13			31-Dec-12
	Stock Options and Cash-Based Stock Appreciation Rights	$	1,416		$	1,175		$	3,376		$	2,764
	Restricted Share Awards and Cash-Based Restricted Share Unit Awards		1,095			1,035			2,609			2,096
	Performance Share Awards and Cash-Based Performance Share Unit Awards		738			1,051			1,700			2,027
		$	3,249		$	3,261		$	7,685		$	6,887
	Stock Options and Stock Appreciation Rights:
	The Company utilizes the Black-Scholes valuation model for estimating the fair value of these awards. During the three months ended December 31, 2013 and 2012, the weighted average fair values of awards granted under the Plan were $6.40 and $8.19 per award, respectively, and $8.68 and $8.45, respectively, during the six months ended December 31, 2013 and 2012, using the following assumptions:
		Three Months Ended			Three Months Ended			Six Months Ended			Six Months Ended
		31-Dec-13			31-Dec-12			31-Dec-13			31-Dec-12
	Risk-free interest rate		1.25	%		0.95	%		1.75	%		0.94	%
	Expected volatility		46	%		48	%		47	%		49	%
	Expected life of options	4.6 years			6.0 years			5.7 years			5.7 years
	Dividend yield	None			None			None			None
	The risk-free interest rate is derived from the average U.S. Treasury Note rate during the period, which approximates the rate in effect at the time of grant related to the expected life of the awards. The risk free interest rate shown above is the weighted average rate for all awards granted during the each respective period. Expected volatility is based on the historical volatility of the Company’s Common Stock over the period commensurate with the expected life of the awards. The expected life calculation is based on the observed time to post-vesting exercise and/or forfeitures of awards by our employees. The dividend yield of zero is based on the fact that the Company has never paid cash dividends and has no current intention to pay cash dividends in the future. The estimated annualized forfeitures are based on the Company’s historical experience of award cancellations pre-vesting and are estimated at a rate of 16%. The Company will record additional expense in future periods if the actual forfeiture rate is lower than estimated, and will adjust expense in future periods if the actual forfeitures are higher than estimated.
	Restricted Share Awards and Restricted Share Units:
	The restricted share awards and units compensation expense was calculated based on the number of shares or units expected to be earned by the grantees multiplied by the stock price at the date of grant and is being recognized over the vesting period. Generally, the restricted share awards and units have a three year cliff-vesting provision and an estimated forfeiture rate of 7.5%.
	Performance Share Awards and Performance Share Units:
	The Compensation Committee of the Board of Directors of the Company has granted certain named executive officers and employees performance share awards and units under the Plan. As of December 31, 2013, the Company had outstanding grants covering performance periods ranging from 24 to 48 months. These awards are intended to provide continuing emphasis on specified financial performance goals that the Company considers important contributors to long-term shareholder value. These awards are payable only if the Company achieves specified levels of financial performance during the performance periods. The performance share awards and units compensation expense is calculated based on the estimated number of shares or units expected to be earned multiplied by the stock price at the date of grant.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	6 Months Ended
	Dec. 31, 2013
Fair Value of Financial Instruments	'
	Note  14.	Fair Value of Financial Instruments
	The FASB defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous markets for the asset and liability in an orderly transaction between market participants at the measurement date. The Company estimates fair value of its financial instruments utilizing an established three-level hierarchy in accordance with U.S. GAAP. The hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date as follows:
	•	Level 1 –	Valuation is based upon unadjusted quoted prices for identical assets or liabilities in active markets.
	•	Level 2 –	Valuation is based upon quoted prices for similar assets and liabilities in active markets, or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instruments.
	•	Level 3 –	Valuation is based upon other unobservable inputs that are significant to the fair value measurements.
	The classification of fair value measurements within the hierarchy is based upon the lowest level of input that is significant to the measurement. At December 31, 2013, the Company had foreign currency forward contracts recorded at fair value. The fair values of these instruments were measured using valuations based upon quoted prices for similar assets and liabilities in active markets (Level 2) and are valued by reference to similar financial instruments, adjusted for credit risk and restrictions and other terms specific to the contracts. At December 31, 2013, the Company had a contingent earnout arrangement related to the acquisition of LightWorks recorded at fair value. The LightWorks earnout arrangement provides up to a maximum of $4.2 million of additional cash payments to the former shareholders based upon LightWorks achieving certain agreed upon financial targets for revenues and customer orders in calendar year 2013, which if earned, will be paid no later than March 2014. As of December 31, 2013, the Company has made total earnout payments of $2.2 million for the customer order portion of the earnout arrangement which was achieved at 100% during July of 2013. The Company has recorded the fair value of the remaining revenue earnout arrangement of $1.1 million in Other accrued liabilities in the Condensed Consolidated Balance Sheet. The fair value of the earnout arrangement was based on significant inputs not observable in the market and represents a Level 3 measurement as defined by U.S. GAAP. The Company used the income approach in measuring the fair value of the earnout arrangement, which assumed a probability of 55% for the revenue earnout. The impact on fair value of discounting the revenue earnout arrangement was not significant as the earnout period ended on December 31, 2013 and is expected to be paid in March 2014. There were no fair value remeasurements recorded on the earnout arrangement during the three months ended December 31, 2013.
	The following table provides a summary by level of the fair value of financial instruments that are measured on a recurring basis for the periods presented ($000):
					Quoted
					Prices in
					Active
					Markets		Significant
					for		Other		Significant
					Identical		Observable		Unobservable
					Assets		Inputs		Inputs
		31-Dec-13			(Level 1)		(Level 2)		(Level 3)
	Assets:
	Foreign currency forward contracts	$	301		$	-	$	301	$	-
	Liabilities:
	Contingent earnout arrangement	$	1,100		$	-	$	-	$	1,100
					Quoted
					Prices in
					Active
					Markets		Significant
					for		Other		Significant
					Identical		Observable		Unobservable
					Assets		Inputs		Inputs
		30-Jun-13			(Level 1)		(Level 2)		(Level 3)
	Liabilities:
	Foreign currency forward contracts	$	23		$	-	$	23	$	-
	Contingent earnout arrangement	$	3,300		$	-	$	-	$	3,300
	The Company’s policy is to report transfers into and out of Levels 1 and 2 of the fair value hierarchy at fair values as of the beginning of the period in which the transfers occur. There were no transfers in and out of Levels 1 and 2 of the fair value hierarchy during the three months ended December 31, 2013.
	The following table presents a reconciliation of the beginning and ending fair value measurements of the Company’s Level 3 contingent earnout arrangement related to the acquisition of LightWorks ($000):
		Significant
		Unobservable Inputs
		(Level 3)
	Balance at July 1, 2013	$	3,300
	Payments		(2,200	)
	Changes in fair value		-
	Balance at December 31, 2013	$	1,100
	The carrying value of Cash and cash equivalents, Accounts receivable and Accounts payable are considered Level 1 among the fair value hierarchy and approximate fair value because of the short-term maturity of those instruments. The Company’s borrowings are considered Level 2 among the fair value hierarchy and have variable interest rates and accordingly their carrying amounts approximate fair value.

Derivative_Instruments

Derivative Instruments	6 Months Ended
	Dec. 31, 2013
Derivative Instruments	'
	Note 15.	Derivative Instruments
	The Company, from time to time, purchases foreign currency forward exchange contracts, primarily in Japanese Yen, that permit it to sell specified amounts of these foreign currencies expected to be received from its export sales for pre-established U.S. dollar amounts at specified dates. These contracts are entered into to limit transactional exposure to changes in currency exchange rates of export sales transactions in which settlement will occur in future periods and which otherwise would expose the Company, on the basis of its aggregate net cash flows in respective currencies, to foreign currency risk.
	The Company has recorded the fair market value of these contracts in the Company’s condensed consolidated financial statements. These contracts had a total notional amount of $8.0 million and $4.7 million at December 31, 2013 and June 30, 2013, respectively. As of December 31, 2013, these forward contracts had expiration dates ranging from January 2014 through April 2014, with Japanese Yen denominations individually ranging from 180 million Yen to 220 million Yen. The Company does not account for these contracts as hedges as defined by U.S. GAAP and records the change in the fair value of these contracts in Other expense (income), net in the Condensed Consolidated Statements of Earnings as they occur. The fair value measurement takes into consideration foreign currency rates and the current creditworthiness of the counterparties to these contracts, as applicable, and is based upon quoted prices for similar assets and liabilities in active markets, or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instruments and thus represents a Level 2 measurement. These contracts are recorded in Prepaid and other current assets in the Company’s Condensed Consolidated Balance Sheets. The change in the fair value of these contracts for the three months ended December 31, 2013 and 2012 was insignificant.

Commitments_and_Contingencies

Commitments and Contingencies	6 Months Ended
	Dec. 31, 2013
Commitments and Contingencies	'
	Note  16.	Commitments and Contingencies
	The Company records a warranty reserve as a charge against earnings based on a percentage of sales utilizing actual warranty claims over the last twelve months. The following table summarizes the change in the carrying value of the Company’s warranty reserve, which is a component of Other accrued liabilities in the Company’s Condensed Consolidated Balance Sheets, as of and for the six months ended December 31, 2013 ($000):
		Six Months Ended
		31-Dec-13
	Balance-beginning of period	$	1,661
	Payments made during the period		(974	)
	Additional warranty liability recorded during the period		887
	Warranty liability assumed through acquisitions		1,173
	Balance-end of period	$	2,747

PostRetirement_Benefits

Post-Retirement Benefits	6 Months Ended
	Dec. 31, 2013
Post-Retirement Benefits	'
	Note 17.	Post-Retirement Benefits
	In connection with the Company’s acquisition of Laser Enterprise, the Company assumed the existing pension plan (the “Swiss Plan”) covering employees of the Zurich, Switzerland subsidiary which included an $8.9 million unfunded pension liability recorded as part of the preliminary purchase price allocation of Laser Enterprise. This unfunded pension liability is recorded in Other liabilities in the Condensed Consolidated Balance Sheet at December 31, 2013.   Net periodic pension costs associated with the Swiss Plan for the three and six months ended December 31, 2013 included the following ($000):
		Three Months			Six Months
		Ended			Ended
		December 31,			December 31,
		2013			2013
	Service cost	$	835		$	1,002
	Interest cost		201			242
	Expected return on plan assets		(331	)		(397	)
	Net amortization		-			-
	Net periodic pension costs	$	705		$	847
	Since the date of acquisition of Laser Enterprise, the Company contributed $0.6 million to the Swiss Plan.  The Company currently anticipates contributing an estimated amount of approximately $1.0 million to the Swiss Plan during the remainder of fiscal year 2014.

Capital_Lease

Capital Lease	6 Months Ended
	Dec. 31, 2013
Capital Lease	'
	Note 18.	Capital Lease
	During the three months ended December 31, 2013, the Company's HIGHYAG subsidiary entered into a capital lease related to a building in Germany.   The following table shows the future minimum lease payments due under the non-cancelable capital lease ($000):
	Fiscal Year Ending:	Amount
	2014 (remaining)	$	631
	2015		1,081
	2016		1,081
	2017		1,081
	2018		1,081
	Thereafter		13,430
	Total minimum lease payments		18,385
	Less amount representing interest		6,380
	Present value of capitalized payments		12,005
	Less: current portion		445
	Long-term portion	$	11,560
	The current and long-term portion of the capital lease obligation was recorded in Other accrued liabilities and Other liabilities, respectively, in the Company’s Condensed Consolidated Balance Sheet as of December 31, 2013.  The present value of the capitalized payments of $12.0 million was recorded in Property, plant & equipment, net, in the Company’s Condensed Consolidated Balance Sheet as of December 31, 2013, with associated depreciation expense being recorded over the 17 year life of the lease.

Share_Repurchase_Program

Share Repurchase Program	12 Months Ended
	Dec. 31, 2013
Share Repurchase Program	'
	Note  19.	Share Repurchase Program
	In February 2014, the Company’s Board of Directors authorized the Company to purchase up to $20 million of its Common Stock. The share repurchase program (“the program”) called for shares to be purchased in the open market or in private transactions from time to time. The program has no expiration and may be suspended or discontinued at any time.  Shares purchased by the Company are retained as treasury stock and available for general corporate purposes. There have been no shares repurchased under the program as of the date of the filing of this Form 10-Q.

Discontinued_Operation_Tables

Discontinued Operation (Tables)	6 Months Ended
	Dec. 31, 2013
Summary of Revenues and Earnings (Losses) of Discontinued Operation	'
		Three Months Ended					Six Months Ended
		December 31,					December 31,
		2013		2012			2013		2012
	Revenues	$	697	$	782		$	1,849	$	5,076
	Earnings (loss) from discontinued operation before income taxes	131			(533	)	133			(2,397	)
	Income tax benefit (expense)		-		(75	)		-		-
	Earnings from discontinued operation, net of taxes	$	131	$	(608	)	$	133	$	(2,397	)

Acquisitions_Tables

Acquisitions (Tables)	6 Months Ended
	Dec. 31, 2013
Pro-forma Consolidated Results of Operations	'
		Three Months Ended				Six Months Ended
		December 31,				December 31,
		2013		2012		2013		2012
	Net revenues	$	181,204	$	170,457	$	373,436	$	343,804
	Earnings from continuing operations attributable to II-VI Incorporated		10,912		10,032		25,493		16,272
	Basic earnings per share from continuing operations attributable to II-VI Incorporated		0.17		0.16		0.41		0.26
	Diluted earnings per share from continuing operations attributable to II-VI Incorporated		0.17		0.16		0.4		0.25
Oclaro's Fiber Amplifier And Micro Optics Business	'
Summary of Purchase Price	'
	Net cash paid at acquisition date	$	79,600
	Cash previously paid		5,000
	Holdback amount recorded in Other liabilities		4,000
	Purchase price	$	88,600
Allocation of Purchase Price of Assets Acquired and Liabilities Assumed at Date of Acquisition	'
	The following table presents the preliminary allocation of the purchase price of the assets acquired at the date of acquisition, as the Company intends to finalize its accounting for the acquisition of Network Solutions during fiscal year 2014 ($000):
	Assets
	Inventories	$	11,314
	Property, plant & equipment		20,546
	Intangible assets		28,795
	Goodwill		27,945
	Total assets acquired	$	88,600
Oclaro Incorporated	'
Summary of Purchase Price	'
	Net cash paid at acquisition date	$	90,601
	Holdback amount recorded in Other accrued liabilities		2,000
	Holdback amount recorded in Other liabilities		6,000
	Purchase price	$	98,601
Allocation of Purchase Price of Assets Acquired and Liabilities Assumed at Date of Acquisition	'
	The following table presents the preliminary allocation of the purchase price of the assets acquired and liabilities assumed at the date of acquisition, as the Company intends to finalize its accounting for the acquisition of Laser Enterprise during fiscal year 2014 ($000):
	Assets
	Inventories	$	26,071
	Prepaid and other assets		1,963
	Deferred income taxes		2,371
	Property, plant & equipment		28,068
	Intangible assets		32,593
	Goodwill		39,206
	Total assets acquired	$	130,272
	Liabilities
	Accounts payable	$	2,214
	Deferred income taxes		13,467
	Accrued income taxes		2,714
	Other accrued liabilities		13,276
	Total liabilities assumed	$	31,671
	Net assets acquired	$	98,601

Inventories_Tables

Inventories (Tables)	6 Months Ended
	Dec. 31, 2013
Components of Inventories	'
	The components of inventories were as follows ($000):
		December 31,		June 30,
		2013		2013
	Raw materials	$	67,101	$	59,290
	Work in progress		58,637		43,895
	Finished goods		51,398		38,674
		$	177,136	$	141,859

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	6 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment	'
	Property, plant and equipment consists of the following ($000):
		December 31,			June 30,
		2013			2013
	Land and land improvements	$	2,381		$	2,236
	Buildings and improvements		96,532			87,189
	Machinery and equipment		340,470			276,802
	Construction in progress		11,834			10,831
			451,217			377,058
	Less accumulated depreciation		(225,625	)		(206,386	)
		$	225,592		$	170,672

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Dec. 31, 2013
Changes in Carrying Amount of Goodwill	'
	Changes in the carrying amount of goodwill are as follows ($000):
		Six Months Ended December 31, 2013
						Near-			Military		Advanced			Active
		Infrared				Infrared			&		Products			Optical
		Optics				Optics			Materials		Group			Products			Total
	Balance-beginning of period	$	9,677			$	60,269		$	30,712	$	22,694		$	-		$	123,352
	Goodwill acquired		-				-			-		-			67,151			67,151
	Goodwill adjustment		-				-			-		(516	)		-			(516	)
	Foreign currency translation		94				444			-		-			-			538
	Balance-end of period	$	9,771			$	60,713		$	30,712	$	22,178		$	67,151		$	190,525
Gross Carrying Amount and Accumulated Amortization	'
	The gross carrying amount and accumulated amortization of the Company’s intangible assets other than goodwill as of December 31, 2013 and June 30, 2013 was as follows ($000):
		31-Dec-13									30-Jun-13
		Gross							Net		Gross						Net
		Carrying				Accumulated			Book		Carrying			Accumulated			Book
		Amount				Amortization			Value		Amount			Amortization			Value
	Technology and Patents	$	68,128			$	(12,797	)	$	55,331	$	39,659		$	(10,455	)	$	29,204
	Trademarks		17,902				(1,001	)		16,901		17,855			(963	)		16,892
	Customer Lists		84,943				(15,494	)		69,449		52,614			(12,189	)		40,425
	Other		2,532				(1,466	)		1,066		1,580			(1,400	)		180
	Total	$	173,505			$	(30,758	)	$	142,747	$	111,708		$	(25,007	)	$	86,701
Estimated Amortization Expense for Existing Intangible Assets for Each of Five Succeeding Years	'
	At December 31, 2013, 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			$	7,038
	2015				13,499
	2016				13,432
	2017				13,423
	2018				12,947

Debt_Tables

Debt (Tables)	6 Months Ended
	Jun. 30, 2013
Components of Debt	'
	The components of debt for the periods indicated were as follows ($000):
		December 31,			June 30,
		2013			2013
	Line of credit, interest at LIBOR, as defined, plus 1.50% and 1.25%, respectively	$	185,000		$	111,000
	Term loan, interest at LIBOR, as defined, plus 1.25%		95,000			-
	Yen denominated line of credit, interest at LIBOR, as defined, plus 1.50% and 1.25%, respectively		2,858			3,036
	Total debt		282,858			114,036
	Current portion of long-term debt		(20,000	)		-
	Long-term debt, less current portion	$	262,858		$	114,036
Remaining Annual Amounts of Principal Payments	'
	Remaining annual principal payments under the Company’s existing credit facilities as of December 31, 2013 were as follows:
								U.S.
								Dollar
			Term			Yen Line		Line of
	Period		Loan			of Credit		Credit		Total
	Year 1		$	20,000		$	-	$	-	$	20,000
	Year 2			20,000			-		-		20,000
	Year 3			20,000			2,858		-		22,858
	Year 4			20,000			-		-		20,000
	Year 5			15,000			-		185,000		200,000
	Total		$	95,000		$	2,858	$	185,000	$	282,858

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	6 Months Ended
	Dec. 31, 2013
Computation of Earnings Per Share	'
	The following table sets forth the computation of earnings per share attributable to II-VI Incorporated for the periods indicated. Weighted average shares issuable upon the exercises of stock options and the release of performance and restricted shares that were not included in the calculation were approximately 452,000 and 378,000, respectively, for the three and six months ended December 31, 2013, and 450,000 and 433,000, respectively, for the three and six months ended December 31, 2012, because they were anti-dilutive ($000 except per share data):
		Three Months Ended					Six Months Ended
		December 31,					December 31,
		2013		2012			2013		2012
	Earnings from continuing operations attributable to II-VI Incorporated	$	7,438	$	12,808		$	17,130	$	27,315
	Earnings (loss) from discontinued operation		131		(608	)		133		(2,397	)
	Net earnings attributable to II-VI Incorporated	$	7,569	$	12,200		$	17,263	$	24,918
	Divided by:
	Weighted average shares		62,563		62,580			62,471		62,683
	Basic earnings (loss) attributable to II-VI Incorporated per common share:
	Continuing operations	$	0.12	$	0.2		$	0.27	$	0.44
	Discontinued operation	$	-	$	(0.01	)	$	-	$	(0.04	)
	Consolidated	$	0.12	$	0.19		$	0.28	$	0.4
	Earnings from continuing operations attributable to II-VI Incorporated	$	7,438	$	12,808		$	17,130	$	27,315
	Earnings (loss) from discontinued operation		131		(608	)		133		(2,397	)
	Net earnings attributable to II-VI Incorporated	$	7,569	$	12,200		$	17,263	$	24,918
	Divided by:
	Weighted average shares		62,563		62,580			62,471		62,683
	Dilutive effect of common stock equivalents		1,372		1,442			1,470		1,427
	Diluted weighted average common shares		63,935		64,022			63,941		64,110
	Diluted earnings (loss) attributable to II-VI Incorporated per common share:
	Continuing operations	$	0.12	$	0.2		$	0.27	$	0.43
	Discontinued operation	$	-	$	(0.01	)	$	-	$	(0.04	)
	Consolidated	$	0.12	$	0.19		$	0.27	$	0.39

Segment_Reporting_Tables

Segment Reporting (Tables)	6 Months Ended
	Dec. 31, 2013
Financial Information of Company's Operation by Segment	'
	The following tables summarize selected financial information of the Company’s operations by segment ($000):
		Three Months Ended December 31, 2013
				Near-		Military			Advanced			Active
		Infrared		Infrared		&			Products			Optical
		Optics		Optics		Materials			Group			Products			Eliminations			Total
	Revenues	$	49,206	$	35,857	$	24,482		$	28,834		$	33,386		$	-		$	171,765
	Inter-segment revenues		189		483		1,439			1,838			-			(3,949	)		-
	Segment earnings (loss)		7,847		2,530		3,469			2,520			(6,798	)		-			9,568
	Interest expense		-		-		-			-			-			-			(1,169	)
	Other income, net		-		-		-			-			-			-			1,125
	Income taxes		-		-		-			-			-			-			(2,086	)
	Earnings from discontinued operation		-		-		-			-			-			-			131
	Net earnings		-		-		-			-			-			-			7,569
	Depreciation and amortization		2,212		4,137		2,086			2,512			3,450			-			14,397
	Segment assets		255,688		309,594		126,355			177,167			247,357			-			1,116,161
	Expenditures for property, plant and equipment		3,021		2,914		611			719			451			-			7,716
	Investment		-		-		-			11,581			-			-			11,581
	Goodwill		9,771		60,713		30,712			22,178			67,151			-			190,525
		Three Months Ended December 31, 2012
				Near-		Military			Advanced
		Infrared		Infrared		&			Products
		Optics		Optics		Materials			Group			Eliminations			Total
	Revenues	$	45,410	$	36,996	$	20,578		$	22,123		$	-		$	125,107
	Inter-segment revenues		651		636		798			1,376			(3,461	)		-
	Segment earnings (loss)		10,532		5,141		(542	)		337			-			15,468
	Interest expense		-		-		-			-			-			(223	)
	Other income, net		-		-		-			-			-			4,551
	Income taxes		-		-		-			-			-			(6,721	)
	Loss from discontinued operation		-		-		-			-			-			(608	)
	Net earnings		-		-		-			-			-			12,467
	Depreciation and amortization		2,168		4,385		1,554			2,022			-			10,129
	Expenditures for property, plant and equipment		1,448		2,558		660			2,566			-			7,232
		Six Months Ended December 31, 2013
				Near-		Military			Advanced			Active
		Infrared		Infrared		&			Products			Optical
		Optics		Optics		Materials			Group			Products			Eliminations			Total
	Revenues	$	101,807	$	75,744	$	50,754		$	55,312		$	38,168		$	-		$	321,785
	Inter-segment revenues		463		768		3,310			3,358			-			(7,899	)		-
	Segment earnings (loss)		18,691		5,619		6,877			2,834			(10,982	)		-			23,039
	Interest expense		-		-		-			-			-			-			(1,652	)
	Other income, net		-		-		-			-			-			-			1,072
	Income taxes		-		-		-			-			-			-			(5,329	)
	Earnings from discontinued operation		-		-		-			-			-			-			133
	Net earnings		-		-		-			-			-			-			17,263
	Depreciation and amortization		4,346		8,748		4,165			4,999			3,975			-			26,233
	Expenditures for property, plant and equipment		4,912		5,442		1,739			1,550			646			-			14,289
		Six Months Ended December 31, 2012
				Near-		Military			Advanced
		Infrared		Infrared		&			Products
		Optics		Optics		Materials			Group			Eliminations			Total
	Revenues	$	96,966	$	77,642	$	40,219		$	38,278		$	-		$	253,105
	Inter-segment revenues		1,151		968		2,338			2,560			(7,017	)		-
	Segment earnings (loss)		22,374		12,863		(826	)		(485	)		-			33,926
	Interest expense		-		-		-			-			-			(259	)
	Other income, net		-		-		-			-			-			5,312
	Income taxes		-		-		-			-			-			(10,983	)
	Loss from discontinued operation		-		-		-			-			-			(2,397	)
	Net earnings		-		-		-			-			-			25,599
	Depreciation and amortization		4,232		8,672		3,007			3,256			-			19,167
	Expenditures for property, plant and equipment		2,588		4,203		1,973			4,380			-			13,144

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	6 Months Ended
	Dec. 31, 2013
Share-Based Compensation Expense by Award Type	'
	Share-based compensation expense is allocated approximately 20% to cost of goods sold and 80% to selling, general and administrative expense based on the employee classification of the grantees. Share-based compensation expense for the periods indicated was as follows ($000):
		Three Months Ended			Three Months Ended			Six Months Ended			Six Months Ended
		31-Dec-13			31-Dec-12			31-Dec-13			31-Dec-12
	Stock Options and Cash-Based Stock Appreciation Rights	$	1,416		$	1,175		$	3,376		$	2,764
	Restricted Share Awards and Cash-Based Restricted Share Unit Awards		1,095			1,035			2,609			2,096
	Performance Share Awards and Cash-Based Performance Share Unit Awards		738			1,051			1,700			2,027
		$	3,249		$	3,261		$	7,685		$	6,887
Schedule of Fair Value Assumptions under Stock Option Plan	'
	The Company utilizes the Black-Scholes valuation model for estimating the fair value of these awards. During the three months ended December 31, 2013 and 2012, the weighted average fair values of awards granted under the Plan were $6.40 and $8.19 per award, respectively, and $8.68 and $8.45, respectively, during the six months ended December 31, 2013 and 2012, using the following assumptions:
		Three Months Ended			Three Months Ended			Six Months Ended			Six Months Ended
		31-Dec-13			31-Dec-12			31-Dec-13			31-Dec-12
	Risk-free interest rate		1.25	%		0.95	%		1.75	%		0.94	%
	Expected volatility		46	%		48	%		47	%		49	%
	Expected life of options	4.6 years			6.0 years			5.7 years			5.7 years
	Dividend yield	None			None			None			None

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Dec. 31, 2013
Summary by Level of Fair Value of Financial Instruments Measured on Recurring Basis	'
	The following table provides a summary by level of the fair value of financial instruments that are measured on a recurring basis for the periods presented ($000):
					Quoted
					Prices in
					Active
					Markets		Significant
					for		Other		Significant
					Identical		Observable		Unobservable
					Assets		Inputs		Inputs
		31-Dec-13			(Level 1)		(Level 2)		(Level 3)
	Assets:
	Foreign currency forward contracts	$	301		$	-	$	301	$	-
	Liabilities:
	Contingent earnout arrangement	$	1,100		$	-	$	-	$	1,100
					Quoted
					Prices in
					Active
					Markets		Significant
					for		Other		Significant
					Identical		Observable		Unobservable
					Assets		Inputs		Inputs
		30-Jun-13			(Level 1)		(Level 2)		(Level 3)
	Liabilities:
	Foreign currency forward contracts	$	23		$	-	$	23	$	-
	Contingent earnout arrangement	$	3,300		$	-	$	-	$	3,300
Reconciliation of Beginning and Ending Fair-Value Measurements of Level Three Contingent Earnout Arrangement Related to Acquisition of LightWorks	'
	The following table presents a reconciliation of the beginning and ending fair value measurements of the Company’s Level 3 contingent earnout arrangement related to the acquisition of LightWorks ($000):
		Significant
		Unobservable Inputs
		(Level 3)
	Balance at July 1, 2013	$	3,300
	Payments		(2,200	)
	Changes in fair value		-
	Balance at December 31, 2013	$	1,100

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	6 Months Ended
	Dec. 31, 2013
Schedule of Change in Carrying Value of Warranty Reserve	'
	The Company records a warranty reserve as a charge against earnings based on a percentage of sales utilizing actual warranty claims over the last twelve months. The following table summarizes the change in the carrying value of the Company’s warranty reserve, which is a component of Other accrued liabilities in the Company’s Condensed Consolidated Balance Sheets, as of and for the six months ended December 31, 2013 ($000):
		Six Months Ended
		31-Dec-13
	Balance-beginning of period	$	1,661
	Payments made during the period		(974	)
	Additional warranty liability recorded during the period		887
	Warranty liability assumed through acquisitions		1,173
	Balance-end of period	$	2,747

PostRetirement_Benefits_Tables

Post-Retirement Benefits (Tables)	6 Months Ended
	Dec. 31, 2013
Schedule of Net Periodic Pension Costs	'
	In connection with the Company’s acquisition of Laser Enterprise, the Company assumed the existing pension plan (the “Swiss Plan”) covering employees of the Zurich, Switzerland subsidiary which included an $8.9 million unfunded pension liability recorded as part of the preliminary purchase price allocation of Laser Enterprise. This unfunded pension liability is recorded in Other liabilities in the Condensed Consolidated Balance Sheet at December 31, 2013.   Net periodic pension costs associated with the Swiss Plan for the three and six months ended December 31, 2013 included the following ($000):
		Three Months			Six Months
		Ended			Ended
		December 31,			December 31,
		2013			2013
	Service cost	$	835		$	1,002
	Interest cost		201			242
	Expected return on plan assets		(331	)		(397	)
	Net amortization		-			-
	Net periodic pension costs	$	705		$	847

Capital_Lease_Tables

Capital Lease (Tables)	6 Months Ended
	Dec. 31, 2013
Schedule of Future Minimum Lease Payments Due Under Non-Cancelable Capital Lease	'
	During the three months ended December 31, 2013, the Company's HIGHYAG subsidiary entered into a capital lease related to a building in Germany.   The following table shows the future minimum lease payments due under the non-cancelable capital lease ($000):
	Fiscal Year Ending:	Amount
	2014 (remaining)	$	631
	2015		1,081
	2016		1,081
	2017		1,081
	2018		1,081
	Thereafter		13,430
	Total minimum lease payments		18,385
	Less amount representing interest		6,380
	Present value of capitalized payments		12,005
	Less: current portion		445
	Long-term portion	$	11,560

Summary_of_Revenues_and_Earnin

Summary of Revenues and Earnings (Losses) of Discontinued Operation (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Disposal Group, Including Discontinued Operation, Income Statement Disclosures	'	'	'	'
Earnings from discontinued operation, net of taxes	$131	($608)	$133	($2,397)
Tellurium product line	'	'	'	'
Disposal Group, Including Discontinued Operation, Income Statement Disclosures	'	'	'	'
Revenues	697	782	1,849	5,076
Earnings (loss) from discontinued operation before income taxes	131	-533	133	-2,397
Income tax benefit (expense)	'	-75	'	'
Earnings from discontinued operation, net of taxes	$131	($608)	$133	($2,397)

Summary_of_Purchase_Price_Deta

Summary of Purchase Price (Detail) (USD $)	6 Months Ended		1 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Nov. 30, 2013	Sep. 12, 2013	Sep. 30, 2013
			Oclaro's Fiber Amplifier And Micro Optics Business	Oclaro's Fiber Amplifier And Micro Optics Business	Oclaro Incorporated
Business Acquisition [Line Items]	'	'	'	'	'
Net cash paid at acquisition date	$175,201	$126,397	$79,600	$5,000	$90,601
Purchase of business - holdback amount recorded in other liabilities	'	'	4,000	'	6,000
Purchase price	'	'	88,600	'	98,601
Purchase of business - holdback amount recorded in other accrued liabilities	'	'	'	'	$2,000

Allocation_of_Purchase_Price_o

Allocation of Purchase Price of Assets Acquired and Liabilities Assumed at Date of Acquisition (Detail) (USD $)	Dec. 31, 2013	Jun. 30, 2013	Nov. 30, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified			Oclaro's Fiber Amplifier And Micro Optics Business	Oclaro Incorporated
Assets	'	'	'	'
Inventories	'	'	$11,314	$26,071
Prepaid and other assets	'	'	'	1,963
Deferred income taxes	'	'	'	2,371
Property, plant & equipment	'	'	20,546	28,068
Intangible assets	'	'	28,795	32,593
Goodwill	190,525	123,352	27,945	39,206
Total assets acquired	'	'	88,600	130,272
Liabilities	'	'	'	'
Accounts payable	'	'	'	2,214
Deferred income taxes	'	'	'	13,467
Accrued income taxes	'	'	'	2,714
Other accrued liabilities	'	'	'	13,276
Total liabilities assumed	'	'	'	31,671
Net assets acquired	'	'	'	$98,601

Proforma_Consolidated_Results_

Pro-forma Consolidated Results of Operations (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]	'	'	'	'
Net revenues	$181,204	$170,457	$373,436	$343,804
Earnings from continuing operations attributable to II-VI Incorporated	$10,912	$10,032	$25,493	$16,272
Basic earnings per share from continuing operations attributable to II-VI Incorporated	$0.17	$0.16	$0.41	$0.26
Diluted earnings per share from continuing operations attributable to II-VI Incorporated	$0.17	$0.16	$0.40	$0.25

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (USD $)	6 Months Ended			1 Months Ended		3 Months Ended	1 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013	Nov. 30, 2013	Sep. 12, 2013	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013
				Oclaro's Fiber Amplifier And Micro Optics Business	Oclaro's Fiber Amplifier And Micro Optics Business	Oclaro's Fiber Amplifier And Micro Optics Business	Oclaro Incorporated	Oclaro Incorporated	Oclaro Incorporated	Acquisitions Of Two Oclaro	Acquisitions Of Two Oclaro
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Purchase price	'	'	'	$88,600,000	'	'	$98,601,000	'	'	'	'
Net cash paid at acquisition date	175,201,000	126,397,000	'	79,600,000	5,000,000	'	90,601,000	'	'	'	'
Purchase of business - holdback amount recorded in other liabilities	'	'	'	4,000,000	'	'	6,000,000	'	'	'	'
Goodwill	190,525,000	'	123,352,000	27,945,000	'	'	39,206,000	'	'	'	'
Business acquisition, revenue of acquired entity	'	'	'	'	'	13,200,000	'	20,200,000	25,000,000	'	'
Business acquisition, earnings of acquired entity	'	'	'	'	'	1,400,000	'	3,300,000	4,000,000	'	'
Business acquisition, cash acquired	'	'	'	'	'	'	1,700,000	'	'	'	'
Purchase of business - holdback amount recorded in other accrued liabilities	'	'	'	'	'	'	2,000,000	'	'	'	'
Business acquisition, transaction costs	'	'	'	'	'	'	'	$300,000	$3,700,000	$300,000	$3,700,000

Investment_Additional_Informat

Investment - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013
Schedule Of Equity Method Investments [Line Items]	'	'	'	'	'
Total carrying value of investment	$11,581	'	$11,581	'	'
Pro-rata share of earnings	'	'	378	593	'
Guangdong Fuxin Electronic Technology	'	'	'	'	'
Schedule Of Equity Method Investments [Line Items]	'	'	'	'	'
Equity method investment, ownership percentage	20.20%	'	20.20%	'	'
Total carrying value of investment	11,600	'	11,600	'	11,200
Pro-rata share of earnings	$100	$200	$400	$600	'

Components_of_Inventories_Deta

Components of Inventories (Detail) (USD $)	Dec. 31, 2013	Jun. 30, 2013
In Thousands, unless otherwise specified
Inventory [Line Items]	'	'
Raw materials	$67,101	$59,290
Work in progress	58,637	43,895
Finished goods	51,398	38,674
Inventories, Total	$177,136	$141,859

Property_Plant_and_Equipment_D

Property Plant and Equipment (Detail) (USD $)	Dec. 31, 2013	Jun. 30, 2013
In Thousands, unless otherwise specified
Property Plant And Equipment [Line Items]	'	'
Land and land improvements	$2,381	$2,236
Buildings and improvements	96,532	87,189
Machinery and equipment	340,470	276,802
Construction in progress	11,834	10,831
Property, Plant and Equipment, gross	451,217	377,058
Less accumulated depreciation	-225,625	-206,386
Property, Plant and Equipment, net	$225,592	$170,672

Changes_in_Carrying_Amount_of_

Changes in Carrying Amount of Goodwill (Detail) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Goodwill [Line Items]	'
Balance-beginning of period	$123,352
Goodwill acquired	67,151
Goodwill adjustment	-516
Foreign currency translation	538
Balance-end of period	190,525
Infrared Optics	'
Goodwill [Line Items]	'
Balance-beginning of period	9,677
Goodwill acquired	0
Goodwill adjustment	0
Foreign currency translation	94
Balance-end of period	9,771
Near-Infrared Optics	'
Goodwill [Line Items]	'
Balance-beginning of period	60,269
Goodwill acquired	0
Goodwill adjustment	0
Foreign currency translation	444
Balance-end of period	60,713
Military & Materials	'
Goodwill [Line Items]	'
Balance-beginning of period	30,712
Goodwill acquired	0
Goodwill adjustment	0
Foreign currency translation	0
Balance-end of period	30,712
Advanced Products Group	'
Goodwill [Line Items]	'
Balance-beginning of period	22,694
Goodwill acquired	0
Goodwill adjustment	-516
Foreign currency translation	0
Balance-end of period	22,178
Active Optical Products	'
Goodwill [Line Items]	'
Balance-beginning of period	0
Goodwill acquired	67,151
Goodwill adjustment	0
Foreign currency translation	0
Balance-end of period	$67,151

Gross_Carrying_Amount_and_Accu

Gross Carrying Amount and Accumulated Amortization (Detail) (USD $)	Dec. 31, 2013	Jun. 30, 2013
In Thousands, unless otherwise specified
Finite Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	$173,505	$111,708
Accumulated Amortization	-30,758	-25,007
Net Book Value	142,747	86,701
Technology and Patents	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	68,128	39,659
Accumulated Amortization	-12,797	-10,455
Net Book Value	55,331	29,204
Trademarks	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	17,902	17,855
Accumulated Amortization	-1,001	-963
Net Book Value	16,901	16,892
Customer Lists	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	84,943	52,614
Accumulated Amortization	-15,494	-12,189
Net Book Value	69,449	40,425
Other	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	2,532	1,580
Accumulated Amortization	-1,466	-1,400
Net Book Value	$1,066	$180

Estimated_Amortization_Expense

Estimated Amortization Expense for Existing Intangible Assets for Each of Five Succeeding Years (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite Lived Intangible Assets [Line Items]	'
Remaining 2014	$7,038
2015	13,499
2016	13,432
2017	13,423
2018	$12,947

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)

3 Months Ended

6 Months Ended

6 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Customer Lists

Customer Lists

Customer Lists

Patents

Patents

Patents

Trade Names

Oclaro Incorporated

Oclaro Incorporated

Oclaro Incorporated

Oclaro Incorporated

M Cubed

Minimum

Maximum

Minimum

Maximum

Technology and Patents

Customer Lists

Noncompete Agreements

Goodwill And Other Intangible Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business acquisition, intangible assets recorded

'

'

'

'

'

'

'

'

'

'

'

$32,593,000

$28,300,000

$32,100,000

$1,000,000

'

Amortization expense recorded on intangible assets

3,400,000

1,300,000

5,600,000

2,400,000

'

'

'

'

'

'

'

'

'

'

'

'

Amortization period of patents and customer lists, in months

'

'

'

'

'122 months

'120 months

'192 months

'121 months

'120 months

'240 months

'

'

'

'

'

'

Carrying amount of trade names acquired

'

'

'

'

'

'

'

'

'

'

16,400,000

'

'

'

'

'

Goodwill adjustment

'

'

($516,000)

'

'

'

'

'

'

'

'

'

'

'

'

$500,000

Components_of_Debt_Detail

Components of Debt (Detail) (USD $)	Dec. 31, 2013	Sep. 10, 2013	Jun. 30, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'	'
Line of credit, interest at LIBOR, as defined, plus 1.50% and 1.25%, respectively	$185,000	'	$111,000
Term loan, interest at LIBOR, as defined, plus 1.25%	95,000	100,000	'
Yen denominated line of credit, interest at LIBOR, as defined, plus 1.50% and 1.25%, respectively	2,858	'	3,036
Total debt	282,858	'	114,036
Current portion of long-term debt	-20,000	'	'
Long-term debt, less current portion	$262,858	'	$114,036

Components_of_Debt_Parenthetic

Components of Debt (Parenthetical) (Detail) (London Interbank Offered Rate (LIBOR))	6 Months Ended
	Dec. 31, 2013	Jun. 30, 2013
Line of credit	'	'
Debt Instrument [Line Items]	'	'
Debt instrument, rate added on variable rate	1.50%	1.25%
Term Loans	'	'
Debt Instrument [Line Items]	'	'
Debt instrument, rate added on variable rate	1.25%	'
Yen denominated line of credit	'	'
Debt Instrument [Line Items]	'	'
Debt instrument, rate added on variable rate	1.50%	1.25%

Remaining_Annual_Amounts_of_Pr

Remaining Annual Amounts of Principal Payments of Credit Facility (Detail) (USD $)	Dec. 31, 2013	Jun. 30, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Year 1	$20,000	'
Year 2	20,000	'
Year 3	22,858	'
Year 4	20,000	'
Year 5	200,000	'
Total debt	282,858	114,036
Term Loans	'	'
Debt Instrument [Line Items]	'	'
Year 1	20,000	'
Year 2	20,000	'
Year 3	20,000	'
Year 4	20,000	'
Year 5	15,000	'
Total debt	95,000	'
Yen denominated line of credit	'	'
Debt Instrument [Line Items]	'	'
Year 1	0	'
Year 2	0	'
Year 3	2,858	'
Year 4	0	'
Year 5	0	'
Total debt	2,858	'
Line of credit	'	'
Debt Instrument [Line Items]	'	'
Year 1	0	'
Year 2	0	'
Year 3	0	'
Year 4	0	'
Year 5	185,000	'
Total debt	$185,000	'

Debt_Additional_Information_De

Debt - Additional Information (Detail)

1 Months Ended

6 Months Ended

1 Months Ended

1 Months Ended

6 Months Ended

Sep. 10, 2013

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2013

Jun. 30, 2013

Sep. 10, 2013

Sep. 10, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 10, 2013

Sep. 10, 2013

Dec. 31, 2013

Jun. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

USD ($)

USD ($)

USD ($)

JPY (¥)

Revolving Credit Facility

Revolving Credit Facility

Yen denominated line of credit

Yen Loan

London Interbank Offered Rate (LIBOR)

London Interbank Offered Rate (LIBOR)

London Interbank Offered Rate (LIBOR)

London Interbank Offered Rate (LIBOR)

London Interbank Offered Rate (LIBOR)

London Interbank Offered Rate (LIBOR)

USD ($)

Maximum

JPY (¥)

JPY (¥)

Revolving Credit Facility

Revolving Credit Facility

Yen denominated line of credit

Yen denominated line of credit

Yen denominated line of credit

Yen denominated line of credit

USD ($)

Maximum

Minimum

Maximum

Minimum

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit, maximum borrowing capacity

'

'

'

'

'

$225,000,000

'

'

'

'

'

'

'

'

'

Line of credit facility, prior borrowing capacity

'

'

'

'

'

140,000,000

'

'

'

'

'

'

'

'

'

Term loan

100,000,000

95,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Term loan, quarterly principal Payment

5,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Term loan, first quarterly principal payment commencement date

1-Oct-13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit facility, optional additional borrowing amount

'

'

'

'

'

'

100,000,000

'

'

'

'

'

'

'

'

Credit facility, term

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

Debt instrument, month and year of maturity

'

'

'

'

'

'2018-09

'

'2016-06

'

'

'

'

'

'

'

Debt instrument, rate added on variable rate

'

'

'

'

'

'

'

'

'

1.75%

0.75%

1.50%

1.25%

1.50%

0.63%

Financing cost incurred

'

1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred financing costs

'

500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit facility

'

'

'

'

'

'

'

500,000,000

'

'

'

'

'

'

'

Amount borrowed

'

'

'

'

300,000,000

'

'

'

300,000,000

'

'

'

'

'

'

Available credit under lines of credit

'

40,500,000

'

29,800,000

'

'

'

'

'

'

'

'

'

'

'

Total outstanding letters of credit

'

$1,500,000

'

$1,300,000

'

'

'

'

'

'

'

'

'

'

'

Weighted average interest rate of total borrowings

'

1.70%

1.20%

'

'

'

'

'

'

'

'

'

'

'

'

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013
Income Taxes [Line Items]	'	'	'
Effective income tax rate	23.70%	28.20%	'
U.S. statutory rate	35.00%	'	'
Unrecognized tax benefits that would impact effective tax rate	$3.60	'	$3.30

Computation_of_Earnings_Per_Sh

Computation of Earnings Per Share (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Line Items]	'	'	'	'
Earnings from continuing operations attributable to II-VI Incorporated	$7,438	$12,808	$17,130	$27,315
Earnings (loss) from discontinued operation	131	-608	133	-2,397
Net Earnings Attributable to II-VI Incorporated	$7,569	$12,200	$17,263	$24,918
Weighted average shares	62,563	62,580	62,471	62,683
Basic earnings (loss) attributable to II-VI Incorporated per common share:	'	'	'	'
Continuing Operations	$0.12	$0.20	$0.27	$0.44
Discontinued Operation	$0	($0.01)	$0	($0.04)
Consolidated	$0.12	$0.19	$0.28	$0.40
Dilutive effect of common stock equivalents	1,372	1,442	1,470	1,427
Diluted weighted average common shares	63,935	64,022	63,941	64,110
Diluted earnings (loss) attributable to II-VI Incorporated per common share:	'	'	'	'
Continuing Operations	$0.12	$0.20	$0.27	$0.43
Discontinued Operation	$0	($0.01)	$0	($0.04)
Consolidated	$0.12	$0.19	$0.27	$0.39

Earnings_Per_Share_Additional_

Earnings Per Share - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'	'	'
Weighted average Shares issuable upon the exercises of stock options excluded from the dilutive share calculation	452,000	450,000	378,000	433,000

Financial_Information_of_Compa

Financial Information of Company's Operation by Segment (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]	'	'	'	'	'
Revenues	$171,765	$125,107	$321,785	$253,105	'
Inter-segment revenues	0	0	0	0	'
Segment earnings (loss)	9,568	15,468	23,039	33,926	'
Interest expense	-1,169	-223	-1,652	-259	'
Other income, net	1,125	4,551	1,072	5,312	'
Income taxes	-2,086	-6,721	-5,329	-10,983	'
Earnings (loss) from discontinued operation	131	-608	133	-2,397	'
Net earnings	7,569	12,467	17,263	25,599	'
Depreciation and amortization	14,397	10,129	26,233	19,167	'
Segment assets	1,116,161	'	1,116,161	'	863,802
Expenditures for property, plant and equipment	7,716	7,232	14,289	13,144	'
Investment	11,581	'	11,581	'	'
Goodwill	190,525	'	190,525	'	'
Eliminations	'	'	'	'	'
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]	'	'	'	'	'
Revenues	0	0	0	0	'
Inter-segment revenues	-3,949	-3,461	-7,899	-7,017	'
Segment earnings (loss)	0	0	0	0	'
Interest expense	0	0	0	0	'
Other income, net	0	0	0	0	'
Income taxes	0	0	0	0	'
Earnings (loss) from discontinued operation	0	0	0	0	'
Net earnings	0	0	0	0	'
Depreciation and amortization	0	0	0	0	'
Segment assets	0	'	0	'	'
Expenditures for property, plant and equipment	0	0	0	0	'
Investment	0	'	0	'	'
Goodwill	0	'	0	'	'
Infrared Optics | Operating Segments	'	'	'	'	'
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]	'	'	'	'	'
Revenues	49,206	45,410	101,807	96,966	'
Inter-segment revenues	189	651	463	1,151	'
Segment earnings (loss)	7,847	10,532	18,691	22,374	'
Interest expense	0	0	0	0	'
Other income, net	0	0	0	0	'
Income taxes	0	0	0	0	'
Earnings (loss) from discontinued operation	0	0	0	0	'
Net earnings	0	0	0	0	'
Depreciation and amortization	2,212	2,168	4,346	4,232	'
Segment assets	255,688	'	255,688	'	'
Expenditures for property, plant and equipment	3,021	1,448	4,912	2,588	'
Investment	0	'	0	'	'
Goodwill	9,771	'	9,771	'	'
Near-Infrared Optics | Operating Segments	'	'	'	'	'
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]	'	'	'	'	'
Revenues	35,857	36,996	75,744	77,642	'
Inter-segment revenues	483	636	768	968	'
Segment earnings (loss)	2,530	5,141	5,619	12,863	'
Interest expense	0	0	0	0	'
Other income, net	0	0	0	0	'
Income taxes	0	0	0	0	'
Earnings (loss) from discontinued operation	0	0	0	0	'
Net earnings	0	0	0	0	'
Depreciation and amortization	4,137	4,385	8,748	8,672	'
Segment assets	309,594	'	309,594	'	'
Expenditures for property, plant and equipment	2,914	2,558	5,442	4,203	'
Investment	0	'	0	'	'
Goodwill	60,713	'	60,713	'	'
Military & Materials | Operating Segments	'	'	'	'	'
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]	'	'	'	'	'
Revenues	24,482	20,578	50,754	40,219	'
Inter-segment revenues	1,439	798	3,310	2,338	'
Segment earnings (loss)	3,469	-542	6,877	-826	'
Interest expense	0	0	0	0	'
Other income, net	0	0	0	0	'
Income taxes	0	0	0	0	'
Earnings (loss) from discontinued operation	0	0	0	0	'
Net earnings	0	0	0	0	'
Depreciation and amortization	2,086	1,554	4,165	3,007	'
Segment assets	126,355	'	126,355	'	'
Expenditures for property, plant and equipment	611	660	1,739	1,973	'
Investment	0	'	0	'	'
Goodwill	30,712	'	30,712	'	'
Advanced Products Group | Operating Segments	'	'	'	'	'
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]	'	'	'	'	'
Revenues	28,834	22,123	55,312	38,278	'
Inter-segment revenues	1,838	1,376	3,358	2,560	'
Segment earnings (loss)	2,520	337	2,834	-485	'
Interest expense	0	0	0	0	'
Other income, net	0	0	0	0	'
Income taxes	0	0	0	0	'
Earnings (loss) from discontinued operation	0	0	0	0	'
Net earnings	0	0	0	0	'
Depreciation and amortization	2,512	2,022	4,999	3,256	'
Segment assets	177,167	'	177,167	'	'
Expenditures for property, plant and equipment	719	2,566	1,550	4,380	'
Investment	11,581	'	11,581	'	'
Goodwill	22,178	'	22,178	'	'
Active Optical Products | Operating Segments	'	'	'	'	'
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]	'	'	'	'	'
Revenues	33,386	'	38,168	'	'
Inter-segment revenues	0	'	0	'	'
Segment earnings (loss)	-6,798	'	-10,982	'	'
Interest expense	0	'	0	'	'
Other income, net	0	'	0	'	'
Income taxes	0	'	0	'	'
Earnings (loss) from discontinued operation	0	'	0	'	'
Net earnings	0	'	0	'	'
Depreciation and amortization	3,450	'	3,975	'	'
Segment assets	247,357	'	247,357	'	'
Expenditures for property, plant and equipment	451	'	646	'	'
Investment	0	'	0	'	'
Goodwill	$67,151	'	$67,151	'	'

ShareBased_Compensation_Expens

Share-Based Compensation Expense by Award Type (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'
Share based compensation expense	$3,249	$3,261	$7,685	$6,887
Stock Options and Cash-Based Stock Appreciation Rights	'	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'
Share based compensation expense	1,416	1,175	3,376	2,764
Restricted Share Awards and Cash-Based Restricted Share Unit Awards	'	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'
Share based compensation expense	1,095	1,035	2,609	2,096
Performance Share Awards and Cash-Based Performance Share Unit Awards	'	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'
Share based compensation expense	$738	$1,051	$1,700	$2,027

Fair_Value_Assumptions_for_Sto

Fair Value Assumptions for Stock Option and Stock Appreciation Rights (Detail)	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Fair Value Option [Line Items]	'	'	'	'
Risk-free interest rate	1.25%	0.95%	1.75%	0.94%
Expected volatility	46.00%	48.00%	47.00%	49.00%
Expected life of options	'4 years 7 months 6 days	'6 years	'5 years 8 months 12 days	'5 years 8 months 12 days
Dividend yield	'	'	'	'

ShareBased_Compensation_Additi

Share-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Percentage of share based compensation expense allocated to cost of sales	20.00%	'	'	'
Percentage of share based compensation expense allocated to selling, general and administrative expense	80.00%	'	'	'
Stock Options and Cash-Based Stock Appreciation Rights	'	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Weighted-average fair values of stock options granted under the stock option Plan	$6.40	$8.19	$8.68	$8.45
Share based compensation, estimated forfeiture percentage	'	'	16.00%	'
Restricted Share Awards and Cash-Based Restricted Share Unit Awards	'	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Share based compensation, estimated forfeiture percentage	'	'	7.50%	'
Share based compensation, vesting period years	'	'	'3 years	'
Performance Stock and Performance Stock Unit | Minimum	'	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Performance share grant, period	'	'	'24 months	'
Performance Stock and Performance Stock Unit | Maximum	'	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Performance share grant, period	'	'	'48 months	'

Summary_by_Level_of_Fair_Value

Summary by Level of Fair Value of Financial Instruments Measured on Recurring Basis (Detail) (Fair Value, Measurements, Recurring, USD $)	Dec. 31, 2013	Jun. 30, 2013
In Thousands, unless otherwise specified
Assets:	'	'
Foreign currency forward contracts	$301	'
Liabilities:	'	'
Contingent earnout arrangement	1,100	3,300
Foreign currency forward contracts	'	23
Fair Value, Inputs, Level 2	'	'
Assets:	'	'
Foreign currency forward contracts	301	'
Liabilities:	'	'
Contingent earnout arrangement	'	'
Foreign currency forward contracts	'	23
Fair Value, Inputs, Level 3	'	'
Liabilities:	'	'
Contingent earnout arrangement	$1,100	$3,300

Reconciliation_of_Beginning_an

Reconciliation of Beginning and Ending Fair-Value Measurements of Level Three Contingent Earnout Arrangement Related to Acquisition of LightWorks (Detail) (Fair Value, Measurements, Recurring, USD $)	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2013
In Thousands, unless otherwise specified			Fair Value, Inputs, Level 3
Business Acquisition Contingent Consideration [Line Items]	'	'	'
Balance - beginning of period	$1,100	$3,300	$3,300
Payments	'	'	-2,200
Changes in fair value	'	'	'
Balance - end of period	$1,100	$3,300	$1,100

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments - Additional Information (Detail) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Jul. 31, 2013
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Business acquisition, additional cash earnout opportunities	$4.20	'
Fair value of earnout arrangement, probability	55.00%	'
Business acquisition, total earnout payments	2.2	'
Business acquisition, percentage of earnout arrangement achieved	'	100.00%
Business acquisition, fair value of remaining revenue earnout arrangement recorded in other accrued liabilities	$1.10	'

Derivative_Instruments_Additio

Derivative Instruments - Additional Information (Detail)	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2013
In Millions, unless otherwise specified	USD ($)	USD ($)	Minimum	Maximum
			JPY (¥)	JPY (¥)
Derivative [Line Items]	'	'	'	'
Foreign currency forward exchange contracts, notional amount	$8	$4.70	'	'
Foreign currency forward exchange contracts maturity amount	'	'	¥ 180	¥ 220

Change_in_Caring_Value_of_Warr

Change in Caring Value of Warranty Reserve (Detail) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Contingencies And Commitments [Line Items]	'
Balance-beginning of period	$1,661
Payments made during the period	-974
Additional warranty liability recorded during the period	887
Warranty liability assumed through acquisitions	1,173
Balance-end of period	$2,747

Schedule_of_Net_Periodic_Pensi

Schedule of Net Periodic Pension Costs (Detail) (USD $)	3 Months Ended	6 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]	'	'
Service cost	$835	$1,002
Interest cost	201	242
Expected return on plan assets	-331	-397
Net amortization	'	'
Net periodic pension costs	$705	$847

PostRetirement_Benefits_Additi

Post-Retirement Benefits - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]	'	'
Post-Retirement benefits contributions	$0.60	$0.60
Post-Retirement benefits expected contributions for next year	'	1
Unfunded Pension Plan	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Pension liability	$8.90	$8.90

Schedule_of_Future_Minimum_Lea

Schedule of Future Minimum Lease Payments Due Under Non-Cancelable Capital Lease (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Capital Leased Assets [Line Items]	'
2014 (remaining)	$631
2015	1,081
2016	1,081
2017	1,081
2018	1,081
Thereafter	13,430
Total minimum lease payments	18,385
Less amount representing interest	6,380
Present value of capitalized payments	12,005
Less: current portion	445
Long-term portion	$11,560

Capital_Lease_Additional_Infor

Capital Lease - Additional Information (Detail) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Capital Leased Assets [Line Items]	'
Capitalized payments property plant and equipment	$12
Property plant and equipment depreciation expenses useful life of leases	'17 years

Share_Repurchase_Program_Detai

Share Repurchase Program (Detail) (Subsequent Event, USD $)	1 Months Ended
In Millions, unless otherwise specified	Feb. 28, 2014
Subsequent Event	'
Equity Class Of Treasury Stock [Line Items]	'
Stock repurchase program, authorized amount	$20