Coherent (COHR) 10-Q 8 Feb 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Dec. 31, 2015	Feb. 04, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Trading Symbol	IIVI
Entity Registrant Name	II-VI INC
Entity Central Index Key	820,318
Current Fiscal Year End Date	--06-30
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		61,259,112

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Current Assets
Cash and cash equivalents	$ 177,084	$ 173,634
Accounts receivable - less allowance for doubtful accounts of $1,766 at December 31, 2015 and $1,048 at June 30, 2015	128,260	140,772
Inventories	167,928	164,388
Deferred income taxes		13,260
Prepaid and refundable income taxes	8,355	6,881
Prepaid and other current assets	13,999	14,033
Total Current Assets	495,626	512,968
Property, plant & equipment, net	200,563	203,812
Goodwill	193,874	195,894
Other intangible assets, net	115,939	122,462
Investment	12,343	11,914
Deferred income taxes	16,099	2,210
Other assets	9,001	8,904
Total Assets	1,043,445	1,058,164
Current Liabilities
Current portion of long-term debt	20,000	20,000
Accounts payable	38,824	45,275
Accrued compensation and benefits	37,457	39,310
Accrued income taxes payable	10,783	9,310
Deferred income taxes		685
Other accrued liabilities	23,829	24,576
Total Current Liabilities	130,893	139,156
Long-term debt	126,491	155,957
Deferred income taxes	6,303	7,105
Other liabilities	27,732	26,865
Total Liabilities	$ 291,419	$ 329,083
Shareholders' Equity
Preferred stock, no par value; authorized - 5,000,000 shares; none issued
Common stock, no par value; authorized - 300,000,000 shares; issued - 72,289,968 shares at December 31, 2015; 71,779,704 shares at June 30, 2015	$ 235,342	$ 226,609
Accumulated other comprehensive income (loss)	(4,848)	8,665
Retained earnings	623,507	587,302
Shareholders' equity excluding treasury stock	854,001	822,576
Treasury stock, at cost - 11,069,110 shares at December 31, 2015 and 10,565,209 shares at June 30, 2015	(101,975)	(93,495)
Total Shareholders' Equity	752,026	729,081
Total Liabilities and Shareholders' Equity	$ 1,043,445	$ 1,058,164

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Statement Of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 1,766	$ 1,048
Preferred stock, par value
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	72,289,968	71,779,704
Treasury stock, shares	11,069,110	10,565,209

Condensed Consolidated Statemen

Condensed Consolidated Statements of Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Revenues
Domestic	$ 74,177	$ 68,695	$ 144,928	$ 130,676
International	117,257	108,041	235,713	231,893
Total Revenues	191,434	176,736	380,641	362,569
Costs, Expenses and Other Expense (Income)
Cost of goods sold	120,090	113,718	238,108	231,692
Internal research and development	12,155	12,845	25,306	25,788
Selling, general and administrative	37,408	33,642	73,718	69,162
Interest expense	597	1,038	1,246	2,242
Other expense (income), net	(994)	(9,295)	(2,051)	(7,613)
Total Costs, Expenses and Other Expense (Income)	169,256	151,948	336,327	321,271
Earnings Before Income Taxes	22,178	24,788	44,314	41,298
Income Taxes	3,187	2,692	8,109	6,900
Net Earnings	$ 18,991	$ 22,096	$ 36,205	$ 34,398
Basic Earnings Per Share:	$ 0.31	$ 0.36	$ 0.59	$ 0.56
Diluted Earnings Per Share:	$ 0.30	$ 0.35	$ 0.58	$ 0.55

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 18,991	$ 22,096	$ 36,205	$ 34,398
Other comprehensive income (loss):
Foreign currency translation adjustments	(5,411)	(1,491)	(13,562)	(4,166)
Pension adjustment, net of taxes of $4 and $14 for the three and six months ended December 31, 2015, respectively, and $50 and $107 for the three and six months ended December 31, 2014, respectively	13	(98)	49	(402)
Comprehensive income	$ 13,593	$ 20,507	$ 22,692	$ 29,830

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Pension adjustment tax	$ 4	$ 50	$ 14	$ 107

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash Flows from Operating Activities
Net earnings	$ 36,205	$ 34,398
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	21,166	20,642
Amortization	5,958	5,990
Share-based compensation expense	6,949	5,955
(Gain) loss on foreign currency remeasurements and transactions	(951)	1,611
Earnings from equity investment	(429)	(516)
Deferred income taxes	(3,788)	(621)
Excess tax benefits from share-based compensation expense	(112)	(103)
Increase (decrease) in cash from changes in:
Accounts receivable	10,520	(4,675)
Inventories	(7,833)	(4,892)
Accounts payable	(5,167)	(5,662)
Income taxes	2,540	1,456
Other operating net assets	(2,758)	(4,139)
Net cash provided by operating activities	62,300	49,444
Cash Flows from Investing Activities
Additions to property, plant & equipment	(19,156)	(31,609)
Proceeds from sale of property, plant & equipment	39	101
Net cash used in investing activities	(19,117)	(31,508)
Cash Flows from Financing Activities
Proceeds from borrowings	4,000	3,000
Payments on borrowings	(33,500)	(32,000)
Purchases of treasury stock	(6,284)	(11,301)
Proceeds from exercises of stock options	1,794	2,042
Other financing activities	(1,861)	(894)
Net cash used in financing activities	(35,851)	(39,153)
Effect of exchange rate changes on cash and cash equivalents	(3,882)	1,506
Net increase (decrease) in cash and cash equivalents	3,450	(19,711)
Cash and Cash Equivalents at Beginning of Period	173,634	174,660
Cash and Cash Equivalents at End of Period	177,084	154,949
Cash paid for interest	1,226	2,229
Cash paid for income taxes	$ 8,497	$ 6,239

Condensed Consolidated Stateme8

Condensed Consolidated Statement of Shareholders' Equity (Unaudited) - 6 months ended Dec. 31, 2015 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock
Beginning Balance at Jun. 30, 2015	$ 729,081	$ 226,609	$ 8,665	$ 587,302	$ (93,495)
Beginning Balance, shares at Jun. 30, 2015		71,780			(10,565)
Shares issued under share-based compensation plans	1,794	$ 1,794
Shares issued under share-based compensation plans (in shares)		497
Shares acquired in satisfaction of minimum tax withholding obligations	(1,981)				$ (1,981)
Shares acquired in satisfaction of minimum tax withholding obligations (in shares)					(110)
Net earnings	36,205			36,205
Purchases of treasury stock	(6,284)				$ (6,284)
Purchases of treasury stock, shares					(381)
Treasury stock under deferred compensation arrangements		$ 215			$ (215)
Treasury stock under deferred compensation arrangements, (in shares)		13			(13)
Foreign currency translation adjustments	(13,562)		(13,562)
Share-based compensation expense	6,949	$ 6,949
Pension adjustment, net of taxes of $14	49		49
Tax deficiency from share-based compensation expense	(225)	(225)
Ending Balance at Dec. 31, 2015	$ 752,026	$ 235,342	$ (4,848)	$ 623,507	$ (101,975)
Ending Balance, shares at Dec. 31, 2015		72,290			(11,069)

Condensed Consolidated Stateme9

Condensed Consolidated Statement of Shareholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Statement Of Stockholders Equity [Abstract]
Pension adjustment tax	$ 4	$ 50	$ 14	$ 107

Basis of Presentation

Basis of Presentation	6 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
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, 2015 and 2014 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, 2015 . The consolidated results of operations for the three and six months ended December 31, 2015 are not necessarily indicative of the results to be expected for the full fiscal year. The June 30, 2015 Condensed Consolidated Balance Sheet information was derived from the Company’s audited financial statements.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Dec. 31, 2015
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Recent Accounting Pronouncements	Note 2 . Recent Accounting Pronouncements Adopted Pronouncements In November 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. This update requires all deferred tax assets and liabilities, and any related valuation allowance, to be classified as noncurrent on the balance sheet. The classification change for all deferred taxes as noncurrent simplifies the Company’s processes as it eliminates the need to separately identify the net current and net noncurrent deferred tax asset or liability in each jurisdiction and allocate valuation allowances. The Company has elected to prospectively adopt the accounting standard in the quarter ended December 31, 2015. The adoption of this standard resulted in the reclassification of $ 13 . 3 million from c urrent D eferred income tax assets in the C onsolidated B alance S heet as of December 31, 2015 to n oncurrent D eferred income tax assets and $ 1 . 0 million from c urrent D eferred income tax liabilities to n oncu rrent D eferred income tax liabilities. Prior periods in the Company’s Consolidated Financial Statements were not retrospectively adjusted. Pronouncements Currently Under Evaluation In September 2015, the FASB issued ASU 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments . This update requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The standard will be effective for the Company’s 2017 fiscal year. E arly adoption is permitted. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory. This update simplifies the measurement of inventory valuation at the lower of cost or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The new inventory measurement requirements will be effective for the Company’s 2018 fiscal year and will replace the current inventory valuation guidance that requires the use of a lower of cost or market framework. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In April 2015, the FASB issued ASU 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement. This update provides guidance about whether a cloud computing arrangement includes a software license. The update will be effective for annual reporting periods, including interim periods within those annual periods, beginning after December 15, 2015. Early adoption is permitted. The update allows for the use of either a prospective or retrospective adoption approach. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. This ASU requires entities to present debt issuance costs in the balance sheet as a direct deduction from the carrying amount of the corresponding debt liability, consistent with debt discounts. The guidance does not address situations in which debt issuance costs do not have an associated debt liability or exceed the carrying amount of the associated debt liability. The update will be effective for annual reporting periods, including interim periods within those annual periods, beginning after December 15, 2015. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis, which affects reporting organizations that are required to evaluate whether they should consolidate certain legal entities. The update will be effective for interim and annual reporting periods in fiscal years beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period. The update allows for the use of either a full retrospective or a modified retrospective adoption approach. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In May 2014, the FASB issued ASU 2014-09: Revenue from Contracts with Customers (Topic 606) which supersedes virtually all existing revenue recognition guidance under U.S. GAAP. The update's core principle is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The update allows for the use of either the retrospective or modified retrospective approach of adoption. On July 9, 2015 the FASB approved a one year deferral of the effective date of the update. The update will be effective for fiscal years, and interim periods within those years, beginning after December 15, 2017 (the first quarter of our fiscal year 2019). We have not yet selected a transition method and are currently evaluating the impact of this guidance on the Company’s Consolidated Financial Statements.

Investment

Investment	6 Months Ended
	Dec. 31, 2015
Equity Method Investments And Joint Ventures [Abstract]
Investment	Note 3 . Investment The Company has an equity investment of 20.2 % in Guangdong Fuxin Electronic Technology (“Fuxin”) based in Guangdong Province, China, which is accounted for under the equity method of accounting. The total carrying value of the investment recorded at December 31, 2015 and June 30, 2015 was $12.3 million and $11.9 million, respectively. During each of the three months ended December 31, 2015 and 2014 , the Company’s pro-rata share of earnings from this investment was $0.2 million , and was $0.4 million and $0.5 million during the six months ended December 31, 2015 and 2014 , respectively, and was recorded in Other expense (income), net in the Condensed Consolidated Statements of Earnings.

Inventories

Inventories	6 Months Ended
	Dec. 31, 2015
Inventory Disclosure [Abstract]
Inventories	Note 4 . Inventories The components of inventories were as follows ($000): December 31, June 30, 2015 2015 Raw materials $ 67,795 $ 71,210 Work in progress 55,805 52,726 Finished goods 44,328 40,452 $ 167,928 $ 164,388

Property, Plant and Equipment

Property, Plant and Equipment	6 Months Ended
	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Property, Plant and Equipment	Note 5 . Property, Plant and Equipment Property, plant and equipment consists of the following ($000): December 31, June 30, 2015 2015 Land and improvements $ 4,619 $ 4,566 Buildings and improvements 91,620 91,171 Machinery and equipment 371,378 366,560 Construction in progress 24,333 17,749 491,950 480,046 Less accumulated depreciation (291,387 ) (276,234 ) $ 200,563 $ 203,812 During the quarter ended March 31, 2015, as part of the Company’s restructuring of its military related businesses in the Performance Products segment, the Company implemented a plan to sell one of its manufacturing facilities located in New Port Richey, Florida. The Company anticipates completing the sale within twelve months of the plan implementation, has reclassified the carrying value of the land and building of approximately $ 1.2 million as assets held for sale and has included the carrying value in Prepaid and other current assets in the Condensed Consolidated Balance Sheets for the periods presented .

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Note 6 . Goodwill and Other Intangible Assets Changes in the carrying amount of goodwill were as follows ($000): Six Months Ended December 31, 2015 II-VI Laser II-VI II- VI Performance Solutions Photonics Products Total Balance-beginning of period $ 43,578 $ 99,426 $ 52,890 $ 195,894 Foreign currency translation (63 ) (1,957 ) - (2,020 ) Balance-end of period $ 43,515 $ 97,469 $ 52,890 $ 193,874 Note 1 of the Notes to Consolidated Financial Statements in the Company’s most recent Annual Report on Form 10-K describes the significant accounting policies and methods used in the preparation of the Company’s C onsolidated F inancial S tatements. Management has evaluated goodwill for indicators of impairment and has concluded that there are no indicators of impairment as of December 31, 2015 . The gross carrying amount and accumulated amortization of the Company’s intangible assets other than goodwill as of December 31, 2015 and June 30, 2015 were as follows ($000): December 31, 2015 June 30, 2015 Gross Net Gross Net Carrying Accumulated Book Carrying Accumulated Book Amount Amortization Value Amount Amortization Value Technology and Patents $ 49,933 $ (20,556 ) $ 29,377 $ 50,520 $ (18,838 ) $ 31,682 Trademarks 15,663 (1,148 ) 14,515 15,869 (1,111 ) 14,758 Customer Lists 101,988 (30,039 ) 71,949 102,489 (26,583 ) 75,906 Other 1,570 (1,472 ) 98 1,572 (1,456 ) 116 Total $ 169,154 $ (53,215 ) $ 115,939 $ 170,450 $ (47,988 ) $ 122,462 Amortization expense recorded on the Company’s intangible assets was $ 3.0 million and $ 6.0 million for the three and six months ended December 31, 2015 , respectively, and was $ 2.9 million and $ 6.0 million for the three and six months ended December 31, 2014 , respectively. The technology and patents are being amortized over a range of 60 to 240 months, with a weighted average remaining life of approximately 10 4 months. The customer lists are being amortized over a range of approximately 120 to 240 months with a weighted average remaining life of approximately 13 5 months. The gross carrying amount of trademarks includes $ 14.2 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 and Chinese subsidiaries. At December 31, 2015 , 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 2016 $ 5,804 2017 11,607 2018 11,067 2019 10,706 2020 10,313

Debt

Debt	6 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Debt	Note 7 . Debt The components of debt for the periods indicated were as follows ($000): December 31, June 30, 2015 2015 Line of credit, interest at LIBOR, as defined, plus 1.25 % $ 89,000 $ 108,500 Term loan, interest at LIBOR, as defined, plus 1.25 % 55,000 65,000 Yen denominated line of credit, interest at LIBOR, as defined, plus 0.625 % 2,491 2,457 Total debt 146,491 175,957 Current portion of long-term debt (20,000 ) (20,000 ) Long-term debt, less current portion $ 126,491 $ 155,957 The Company’s Second Amended and Restated Credit Agreement (the “Credit Facility”) provides for a revolving credit facility of $ 225 million, as well as a $ 100 million Term Loan. The Term Loan is being repaid in consecutive quarterly principal payments on the first business day of each January, April, July and October, with the first payment having commenced 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 of September 10, 2018 . Amounts borrowed under the revolving credit facility are due and payable on the maturity date. The 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 Credit Facility in an aggregate additional amount not to exceed $ 100 million. The Credit Facility has a five -year term through September 10, 2018 and has an interest rate of either a Base Rate Option or a Euro-Rate Option, plus an Applicable Margin, as defined in the agreement governing the Credit Facility. If the Base Rate option is selected for a borrowing, the Applicable Margin is 0.00 % to 0.075 % and if the Euro-Rate Option is selected for a borrowing, the Applicable Margin is 0.75 % to 1.75 % . The Applicable Margin is based on the Company’s ratio of consolidated indebtedness to consolidated EBITDA. Additionally, the Credit Facility is subject to certain covenants, including those relating to minimum interest coverage and maximum leverage ratios. As of December 31, 2015 , the Company was in compliance with all financial covenants under its Credit Facility. The Company’s Yen denominated line of credit is a 500 million Yen (approximately $ 4.1 million) facility. The Yen line of credit was extended in September 2015 through August 2020 on substantially the same terms. The interest rate is equal to LIBOR, as defined in the loan agreement, plus 0.625 % to 1.50 %. At each of December 31, 2015 and June 30, 2015 , 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, 2015 , the Company was in compliance with all financial covenants under its Yen facility. The Company had aggregate availability of $ 136.1 million and $ 116.6 million under its lines of credit as of December 31, 2015 and June 30, 2015 , respectively. The amounts available under the Company’s lines of credit are reduced by outstanding letters of credit. As of December 31, 2015 and June 30, 2015 , total outstanding letters of credit supported by these credit facilities were $ 1.5 million. The weighted average interest rate of total borrowings was 1.5 % and 1.9 % for the six months ended December 31, 2015 and 2014 , respectively. Remaining annual principal payments under the Company’s existing credit facilities as of December 31, 2015 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 15,000 - 89,000 104,000 Year 4 - - - - Year 5 - 2,491 - 2,491 Total $ 55,000 $ 2,491 $ 89,000 $ 146,491

Income Taxes

Income Taxes	6 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Note 8 . Income Taxes The Company’s year-to-date effective income tax rate at December 31, 2015 and 2014 was 18.3 % and 16. 4 %, respectively. The variations between the Company’s effective tax rate 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. 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, 2015 and June 30, 2015 , the Company’s gross unrecognized income tax benefit was $ 5.1 million and $ 4.0 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, 2015 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 $5.1 million and $4.0 million of gross unrecognized income tax benefit at December 31, 2015 and June 30, 2015 , respectively, was immaterial. Fiscal years 2012 to 2015 remain open to examination by the United States Internal Revenue Service, fiscal years 2011 to 2015 remain open to examination by certain state jurisdictions, and fiscal years 2008 to 2015 remain open to examination by certain foreign taxing jurisdictions. The Company’s fiscal year 2011 and 2012 California state income tax returns are currently under examination by the state of California’s Franchise Tax Board. The Company’s fiscal year 2012 and 2013 German income tax returns are currently under examination by the Federal Central Tax Office in Germany .

Earnings Per Share

Earnings Per Share	6 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Note 9 . Earnings Per Share The following table sets forth the computation of earnings per share for the periods indicated. Weighted average shares issuable upon the exercises of stock options and the release of performance and restricted shares not included in the calculation because they were anti-dilutive totaled approximately 193,000 and 212,000 for the three and six months ended December 31, 2015 , respectively, and 976,000 and 927,000 for the three and six months ended December 31, 2014 , respectively ($000 except per share data): Three Months Ended Six Months Ended December 31, December 31, 2015 2014 2015 2014 Net earnings $ 18,991 $ 22,096 $ 36,205 $ 34,398 Divided by: Weighted average shares 61,165 61,129 61,194 61,319 Basic earnings per common share: $ 0.31 $ 0.36 $ 0.59 $ 0.56 Net earnings $ 18,991 $ 22,096 $ 36,205 $ 34,398 Divided by: Weighted average shares 61,165 61,129 61,194 61,319 Dilutive effect of common stock equivalents 1,508 1,147 1,507 1,213 Diluted weighted average common shares 62,673 62,276 62,701 62,532 Diluted earnings per common share: $ 0.30 $ 0.35 $ 0.58 $ 0.55

Segment Reporting

Segment Reporting	6 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Segment Reporting	Note 10 . Segment Reporting The Company reports its business segments using the “management approach” model for segment reporting. This means that 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. The Company reports its financial results in the following three segments: ( i ) II-VI Laser Solutions, (ii) II-VI Photonics, and (iii) II-VI Performance Products, and the Company’s chief operating decision maker receives and reviews financial information based on these segments. The Company evaluates business segment performance based upon segment operating income, which is defined as earnings before income taxes, interest and other income or expense. The segments are managed separately due to the market, production requirements and facilities unique to each segment. The II-VI Laser Solutions segment is located in the U.S., Singapore, China, Germany, Switzerland, Japan, Belgium, the U.K., Italy, South Korea and the Philippines. II-VI Laser Solutions is directed by the President of II-VI Laser Solutions, while each geographic location is directed by a general manager, and is further divided into production and administrative units that are directed by managers. II-VI Laser Solutions designs, manufactures and markets optical and electro-optical components and materials sold under the II-VI Infrared brand name and used primarily in high-power CO 2 lasers. II-VI Laser Solutions also manufactures fiber-delivered beam delivery systems and processing tools and direct diode lasers for industrial lasers sold under the II-VI HIGHYAG and II-VI Laser Enterprise brand names. The II-VI Photonics segment is located in the U.S., China, Vietnam, Germany, Japan, the U.K., Italy and Hong Kong. II-VI Photonics is directed by the President of II-VI Photonics and is further divided into production and administrative units that are directed by managers. II-VI Photonics manufactures crystal materials, optics, microchip lasers and opto -electronic modules for use in optical communication networks and other diverse consumer and commercial applications. In addition, the segment also manufactures pump lasers, and optical amplifiers and micro-optics for optical amplifiers for both terrestrial and submarine applications within the optical communications market. The II-VI Performance Products segment is located in the U.S., Vietnam, Japan, China, Germany and the Philippines. II-VI Performance Products is directed by a Corporate Executive Vice President, while each geographic location is directed by a general manager. II-VI Performance Products is further divided into production and administrative units that are directed by managers. II-VI Performance Products designs, manufactures and markets infrared optical components and high-precision optical assemblies for military, medical and commercial laser imaging applications. In addition, the segment designs, manufactures and markets unique engineered materials for thermo-electric and silicon carbide applications servicing the semiconductor, military and medical markets. The accounting policies of the segments are the same as those of the Company. The Company’s corporate expenses are allocated to the segments. The Company evaluates segment performance based upon reported segment operating income, which is defined as earnings from continuing operations before income taxes, interest and other income or expense. Inter-segment sales and transfers are eliminated. The following tables summarize selected financial information of the Company’s operations by segment ($000): Three Months Ended December 31, 2015 II-VI II-VI Laser II-VI Performance Solutions Photonics Products Eliminations Total Revenues $ 70,191 $ 74,264 $ 46,979 $ - $ 191,434 Inter-segment revenues 4,850 2,766 1,543 (9,159 ) - Operating income 11,251 7,455 3,076 - 21,781 Interest expense - - - - (597 ) Other income (expense), net - - - - 994 Income taxes - - - - (3,187 ) Net earnings - - - - 18,991 Depreciation and amortization 3,691 4,980 5,148 - 13,819 Segment assets 331,797 435,297 276,351 - 1,043,445 Expenditures for property, plant and equipment 3,475 4,471 1,786 - 9,732 Investment - - 12,343 - 12,343 Goodwill 43,515 97,469 52,890 - 193,874 Three Months Ended December 31, 2014 II-VI II-VI Laser II-VI Performance Solutions Photonics Products Eliminations Total Revenues $ 67,655 $ 60,853 $ 48,228 $ - $ 176,736 Inter-segment revenues 5,498 3,800 1,880 (11,178 ) - Operating income 12,226 413 3,892 - 16,531 Interest expense - - - - (1,038 ) Other income (expense), net - - - - 9,295 Income taxes - - - - (2,692 ) Net earnings - - - - 22,096 Depreciation and amortization 3,368 5,229 4,474 - 13,071 Expenditures for property, plant and equipment 3,372 3,076 3,631 - 10,079 Six Months Ended December 31, 2015 II-VI II-VI Laser II-VI Performance Solutions Photonics Products Eliminations Total Revenues $ 141,774 $ 146,159 $ 92,708 $ - $ 380,641 Inter-segment revenues 9,380 5,797 3,938 (19,115 ) - Operating income 23,426 13,739 6,345 - 43,509 Interest expense - - - - (1,246 ) Other income (expense), net - - - - 2,051 Income taxes - - - - (8,109 ) Net earnings - - - - 36,205 Depreciation and amortization 7,395 10,073 9,656 - 27,124 Expenditures for property, plant and equipment 9,355 6,623 3,178 - 19,156 Six Months Ended December 31, 2014 II-VI II-VI Laser II-VI Performance Solutions Photonics Products Eliminations Total Revenues $ 140,454 $ 124,491 $ 97,624 $ - $ 362,569 Inter-segment revenues 10,562 6,620 4,108 (21,290 ) - Operating income 25,149 2,485 8,293 - 35,927 Interest expense - - - - (2,242 ) Other income (expense), net - - - - 7,613 Income taxes - - - - (6,900 ) Net earnings - - - - 34,398 Depreciation and amortization 6,901 10,751 8,980 - 26,632 Expenditures for property, plant and equipment 19,438 5,969 6,202 - 31,609

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Dec. 31, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation	Note 11. Share-Based Compensation The Board of Directors adopted the II-VI Incorporated Second Amended and Restated 2012 Omnibus Incentive Plan (the “Plan”) which was approved by the shareholders at the Annual Meeting in November 201 5 . The Plan provides for the grant of performance-based cash incentive awards, 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 maximum number of shares of the Company’s common stock authorized for issuance under the Plan is limited to 4,900,000 shares of common stock, not including any remaining shares forfeited under the predecessor plans that may be rolled into the Plan. The Company records share-based compensation expense for these awards in accordance with U.S. GAAP, which requires the recognition of grant-date fair value of share-based compensation in net earnings and over the requisite service period of the individual grantees, which generally equals the vesting period. The Company accounts for cash-based stock appreciation rights, cash-based restricted share unit awards and cash-based performance share unit awards as liability awards, in accordance with applicable accounting standards. Share-based compensation expense is allocated approximately 15 % to cost of goods sold and 85 % 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 Six Months Ended December 31, 2015 2014 2015 2014 Stock Options and Cash-Based Stock Appreciation Rights $ 751 $ 1,096 $ 3,137 $ 3,215 Restricted Share Awards and Cash-Based Restricted Share Unit Awards 1,554 1,063 2,785 2,159 Performance Share Awards and Cash-Based Performance Share Unit Awards 1,428 580 1,676 990 $ 3,733 $ 2,739 $ 7,598 $ 6,364

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Dec. 31, 2015
Business Combinations [Abstract]
Fair Value of Financial Instruments	Note 12 . 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, 2015 , 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. Foreign currency gain related to these contracts was immaterial for the three and six months ended December 31, 2015 . The Company had Level 2 foreign currency forward contract liabilities of $ 35,000 as of December 31, 2015 and assets of $ 130,000 as of June 30, 2015, respectively. 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 and six months ended December 31, 2015 . The fair values of cash and cash equivalents 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 are variable interest rates and accordingly their carrying amounts approximate fair value.

Derivative Instruments

Derivative Instruments	6 Months Ended
	Dec. 31, 2015
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Instruments	Note 13. 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. The Company enters into these contracts 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 C ondensed C onsolidated F inancial S tatements. These contracts had a total notional amount of $ 8. 7 million and $ 10.8 million at December 31, 2015 and June 30, 2015 , respectively. As of December 31, 2015 , these forward contracts had expiration dates ranging from January 201 6 through April 2016 , with Japanese Yen denominations individually ranging from 100 million Yen to 350 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 Other liabilities in the Company’s Condensed Consolidated Balance Sheets. The change in the fair value of these contracts for each of the three and six months ended December 31, 2015 and 2014 was insignificant.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Dec. 31, 2015
Guarantees [Abstract]
Commitments and Contingencies	Note 14 . 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 ($000): Six Months Ended December 31, 2015 Balance-beginning of period $ 3,251 Payments made during the period (1,536 ) Additional warranty liability recorded during the period 1,525 Balance-end of period $ 3,240

Post-Retirement Benefits

Post-Retirement Benefits	6 Months Ended
	Dec. 31, 2015
Compensation And Retirement Disclosure [Abstract]
Post-Retirement Benefits	Note 15. Post-Retirement Benefits The Company has a pension plan (the “Swiss Plan”) covering employees of the Zurich, Switzerland subsidiary. The unfunded pension liability of $ 9.8 million is recorded in Other liabilities in the Condensed Consolidated Balance Sheet at December 31, 2015 . Net periodic pension costs associated with the Swiss Plan included the following ($000): Three Months Ended Six Months Ended December 31, December 31, 2015 2014 2015 2014 Service cost $ 637 $ 673 $ 1,320 $ 1,353 Interest cost 103 179 214 360 Expected return on plan assets (261 ) (267 ) (541 ) (537 ) Net amortization 17 (148 ) 63 (509 ) Net periodic pension costs $ 496 $ 437 $ 1,056 $ 667 The Company contributed $ 0.5 million and $ 1.0 million to the Swiss Plan during the three and six months ended December 31, 2015 , respectively, and $ 0.6 million and $ 1.2 million during the three and six months ended December 31, 2014 , respectively. The Company currently anticipates contributing an additional estimated amount of approximately $ 1.0 million to the Swiss Plan during the remainder of fiscal year 2016 .

Share Repurchase Program

Share Repurchase Program	6 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Share Repurchase Program	Note 16 . Share Repurchase Program In August 2014, the Company’s Board of Directors authorized the Company to purchase up to $ 50 million of its Common Stock through a share repurchase program (the “Program”) that calls 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. As of December 31, 2015 , the Company has purchased 1,318,987 shares of its Common Stock pursuant to the Program for approximately $ 19.0 million.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Note 17. Accumulated Other Comprehensive Income (Loss) The changes in accumulated other comprehensive income (“AOCI") by component, net of tax, for the six months ended December 31, 2015 were as follows ($000): Foreign Total Currency Defined Accumulated Other Translation Benefit Comprehensive Adjustment Pension Plan Income (Loss) AOCI - June 30, 2015 $ 9,466 $ (801 ) $ 8,665 Other comprehensive income (loss) before reclassifications (13,562 ) - (13,562 ) Amounts reclassified from AOCI - 49 49 Net current-period other comprehensive income (loss) (13,562 ) 49 (13,513 ) AOCI - December 31, 2015 $ (4,096 ) $ (752 ) $ (4,848 )

Subsequent Event

Subsequent Event	6 Months Ended
	Dec. 31, 2015
Subsequent Events [Abstract]
Subsequent Event	Note 18. Subsequent Event On January 19, 2016, the Company announced that it signed agreements to acquire two businesses , EpiWorks , Inc. (“ EpiWorks ”) and ANADIGICS, Inc. (“ Anadigics ”), in two separate transactions. These businesses are expected to expand the Company’s technology platforms and production capacity for semiconductor lasers with a scalable 6-inch epitaxial growth and wafer fabrication platform. O n February 1, 2016 , the Company completed its acquisition of EpiWorks , which now operates as a wholly owned subsidiary of the Company. The merger agreement between the Company and EpiWorks provides for the payment by the Company of an aggregate of approximately $ 43 million in cash at closing with up to an additional $ 6 million in potential earn-out payments over the next three years, subject to certain adjustments. Due to the close proximity of this acquisition to the filing date of this Form 10-Q, the Company was unable to make certain financial statement disclosures related to the purchase price allocation of EpiWorks . On January 15, 2016 , the Company entered into a merger agreement with Anadigics . On February 2, 2016 a wholly owned subsidiary of the Company commenced a tender offer for all of the outstanding common stock of Anadigics at a price of $ 0.66 per share in cash, without interest . The tender offer will expire on March 1, 2016 , unless extended . A ssuming sufficient shares of Anadigics are tendered in the tender offer, the Company is expected to complete the acquisition of Anadigics via a second-step merger promptly following the expiration of the tender offer. The aggregate consideration for the transaction is approximately $ 61.0 million. Assuming the satisfaction of all applicable conditions to the tender offer and the merger, the acquisition of Anadigics is currently expected to close in March 2016

Recent Accounting Pronounceme28

Recent Accounting Pronouncements (Policies)	6 Months Ended
	Dec. 31, 2015
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Recent Accounting Pronouncements	Adopted Pronouncements In November 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. This update requires all deferred tax assets and liabilities, and any related valuation allowance, to be classified as noncurrent on the balance sheet. The classification change for all deferred taxes as noncurrent simplifies the Company’s processes as it eliminates the need to separately identify the net current and net noncurrent deferred tax asset or liability in each jurisdiction and allocate valuation allowances. The Company has elected to prospectively adopt the accounting standard in the quarter ended December 31, 2015. The adoption of this standard resulted in the reclassification of $ 13 . 3 million from c urrent D eferred income tax assets in the C onsolidated B alance S heet as of December 31, 2015 to n oncurrent D eferred income tax assets and $ 1 . 0 million from c urrent D eferred income tax liabilities to n oncu rrent D eferred income tax liabilities. Prior periods in the Company’s Consolidated Financial Statements were not retrospectively adjusted. Pronouncements Currently Under Evaluation In September 2015, the FASB issued ASU 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments . This update requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The standard will be effective for the Company’s 2017 fiscal year. E arly adoption is permitted. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory. This update simplifies the measurement of inventory valuation at the lower of cost or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The new inventory measurement requirements will be effective for the Company’s 2018 fiscal year and will replace the current inventory valuation guidance that requires the use of a lower of cost or market framework. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In April 2015, the FASB issued ASU 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement. This update provides guidance about whether a cloud computing arrangement includes a software license. The update will be effective for annual reporting periods, including interim periods within those annual periods, beginning after December 15, 2015. Early adoption is permitted. The update allows for the use of either a prospective or retrospective adoption approach. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. This ASU requires entities to present debt issuance costs in the balance sheet as a direct deduction from the carrying amount of the corresponding debt liability, consistent with debt discounts. The guidance does not address situations in which debt issuance costs do not have an associated debt liability or exceed the carrying amount of the associated debt liability. The update will be effective for annual reporting periods, including interim periods within those annual periods, beginning after December 15, 2015. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis, which affects reporting organizations that are required to evaluate whether they should consolidate certain legal entities. The update will be effective for interim and annual reporting periods in fiscal years beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period. The update allows for the use of either a full retrospective or a modified retrospective adoption approach. The adoption of this ASU is not expected to have a material effect on the Company’s Consolidated Financial Statements. In May 2014, the FASB issued ASU 2014-09: Revenue from Contracts with Customers (Topic 606) which supersedes virtually all existing revenue recognition guidance under U.S. GAAP. The update's core principle is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The update allows for the use of either the retrospective or modified retrospective approach of adoption. On July 9, 2015 the FASB approved a one year deferral of the effective date of the update. The update will be effective for fiscal years, and interim periods within those years, beginning after December 15, 2017 (the first quarter of our fiscal year 2019). We have not yet selected a transition method and are currently evaluating the impact of this guidance on the Company’s Consolidated Financial Statements.

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Dec. 31, 2015
Inventory Disclosure [Abstract]
Components of Inventories	The components of inventories were as follows ($000): December 31, June 30, 2015 2015 Raw materials $ 67,795 $ 71,210 Work in progress 55,805 52,726 Finished goods 44,328 40,452 $ 167,928 $ 164,388

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	6 Months Ended
	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment consists of the following ($000):

Goodwill and Other Intangible31

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	Changes in the carrying amount of goodwill were as follows ($000): Six Months Ended December 31, 2015 II-VI Laser II-VI II- VI Performance Solutions Photonics Products Total Balance-beginning of period $ 43,578 $ 99,426 $ 52,890 $ 195,894 Foreign currency translation (63 ) (1,957 ) - (2,020 ) Balance-end of period $ 43,515 $ 97,469 $ 52,890 $ 193,874
Gross Carrying Amount and Accumulated Amortization of Intangible Assets Other Than Goodwill	The gross carrying amount and accumulated amortization of the Company’s intangible assets other than goodwill as of December 31, 2015 and June 30, 2015 were as follows ($000): December 31, 2015 June 30, 2015 Gross Net Gross Net Carrying Accumulated Book Carrying Accumulated Book Amount Amortization Value Amount Amortization Value Technology and Patents $ 49,933 $ (20,556 ) $ 29,377 $ 50,520 $ (18,838 ) $ 31,682 Trademarks 15,663 (1,148 ) 14,515 15,869 (1,111 ) 14,758 Customer Lists 101,988 (30,039 ) 71,949 102,489 (26,583 ) 75,906 Other 1,570 (1,472 ) 98 1,572 (1,456 ) 116 Total $ 169,154 $ (53,215 ) $ 115,939 $ 170,450 $ (47,988 ) $ 122,462
Estimated Amortization Expense for Existing Intangible Assets for Each of Five Succeeding Fiscal Years	At December 31, 2015 , 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 2016 $ 5,804 2017 11,607 2018 11,067 2019 10,706 2020 10,313

Debt (Tables)

Debt (Tables)	6 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Components of Debt	The components of debt for the periods indicated were as follows ($000): December 31, June 30, 2015 2015 Line of credit, interest at LIBOR, as defined, plus 1.25 % $ 89,000 $ 108,500 Term loan, interest at LIBOR, as defined, plus 1.25 % 55,000 65,000 Yen denominated line of credit, interest at LIBOR, as defined, plus 0.625 % 2,491 2,457 Total debt 146,491 175,957 Current portion of long-term debt (20,000 ) (20,000 ) Long-term debt, less current portion $ 126,491 $ 155,957
Remaining Annual Amounts of Principal Payments	Remaining annual principal payments under the Company’s existing credit facilities as of December 31, 2015 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 15,000 - 89,000 104,000 Year 4 - - - - Year 5 - 2,491 - 2,491 Total $ 55,000 $ 2,491 $ 89,000 $ 146,491

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Computation of Earnings Per Share	The following table sets forth the computation of earnings per share for the periods indicated. Weighted average shares issuable upon the exercises of stock options and the release of performance and restricted shares not included in the calculation because they were anti-dilutive totaled approximately 193,000 and 212,000 for the three and six months ended December 31, 2015 , respectively, and 976,000 and 927,000 for the three and six months ended December 31, 2014 , respectively ($000 except per share data): Three Months Ended Six Months Ended December 31, December 31, 2015 2014 2015 2014 Net earnings $ 18,991 $ 22,096 $ 36,205 $ 34,398 Divided by: Weighted average shares 61,165 61,129 61,194 61,319 Basic earnings per common share: $ 0.31 $ 0.36 $ 0.59 $ 0.56 Net earnings $ 18,991 $ 22,096 $ 36,205 $ 34,398 Divided by: Weighted average shares 61,165 61,129 61,194 61,319 Dilutive effect of common stock equivalents 1,508 1,147 1,507 1,213 Diluted weighted average common shares 62,673 62,276 62,701 62,532 Diluted earnings per common share: $ 0.30 $ 0.35 $ 0.58 $ 0.55

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
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, 2015 II-VI II-VI Laser II-VI Performance Solutions Photonics Products Eliminations Total Revenues $ 70,191 $ 74,264 $ 46,979 $ - $ 191,434 Inter-segment revenues 4,850 2,766 1,543 (9,159 ) - Operating income 11,251 7,455 3,076 - 21,781 Interest expense - - - - (597 ) Other income (expense), net - - - - 994 Income taxes - - - - (3,187 ) Net earnings - - - - 18,991 Depreciation and amortization 3,691 4,980 5,148 - 13,819 Segment assets 331,797 435,297 276,351 - 1,043,445 Expenditures for property, plant and equipment 3,475 4,471 1,786 - 9,732 Investment - - 12,343 - 12,343 Goodwill 43,515 97,469 52,890 - 193,874 Three Months Ended December 31, 2014 II-VI II-VI Laser II-VI Performance Solutions Photonics Products Eliminations Total Revenues $ 67,655 $ 60,853 $ 48,228 $ - $ 176,736 Inter-segment revenues 5,498 3,800 1,880 (11,178 ) - Operating income 12,226 413 3,892 - 16,531 Interest expense - - - - (1,038 ) Other income (expense), net - - - - 9,295 Income taxes - - - - (2,692 ) Net earnings - - - - 22,096 Depreciation and amortization 3,368 5,229 4,474 - 13,071 Expenditures for property, plant and equipment 3,372 3,076 3,631 - 10,079 Six Months Ended December 31, 2015 II-VI II-VI Laser II-VI Performance Solutions Photonics Products Eliminations Total Revenues $ 141,774 $ 146,159 $ 92,708 $ - $ 380,641 Inter-segment revenues 9,380 5,797 3,938 (19,115 ) - Operating income 23,426 13,739 6,345 - 43,509 Interest expense - - - - (1,246 ) Other income (expense), net - - - - 2,051 Income taxes - - - - (8,109 ) Net earnings - - - - 36,205 Depreciation and amortization 7,395 10,073 9,656 - 27,124 Expenditures for property, plant and equipment 9,355 6,623 3,178 - 19,156 Six Months Ended December 31, 2014 II-VI II-VI Laser II-VI Performance Solutions Photonics Products Eliminations Total Revenues $ 140,454 $ 124,491 $ 97,624 $ - $ 362,569 Inter-segment revenues 10,562 6,620 4,108 (21,290 ) - Operating income 25,149 2,485 8,293 - 35,927 Interest expense - - - - (2,242 ) Other income (expense), net - - - - 7,613 Income taxes - - - - (6,900 ) Net earnings - - - - 34,398 Depreciation and amortization 6,901 10,751 8,980 - 26,632 Expenditures for property, plant and equipment 19,438 5,969 6,202 - 31,609

Share-Based Compensation (Table

Share-Based Compensation (Tables)	6 Months Ended
	Dec. 31, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation Expense by Award Type	Share-based compensation expense is allocated approximately 15 % to cost of goods sold and 85 % 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 Six Months Ended December 31, 2015 2014 2015 2014 Stock Options and Cash-Based Stock Appreciation Rights $ 751 $ 1,096 $ 3,137 $ 3,215 Restricted Share Awards and Cash-Based Restricted Share Unit Awards 1,554 1,063 2,785 2,159 Performance Share Awards and Cash-Based Performance Share Unit Awards 1,428 580 1,676 990 $ 3,733 $ 2,739 $ 7,598 $ 6,364

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Dec. 31, 2015
Guarantees [Abstract]
Change in Carrying Value of Company's Warranty Reserve	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 ($000): Six Months Ended December 31, 2015 Balance-beginning of period $ 3,251 Payments made during the period (1,536 ) Additional warranty liability recorded during the period 1,525 Balance-end of period $ 3,240

Post-Retirement Benefits (Table

Post-Retirement Benefits (Tables)	6 Months Ended
	Dec. 31, 2015
Compensation And Retirement Disclosure [Abstract]
Schedule of Net Periodic Pension Costs	Net periodic pension costs associated with the Swiss Plan included the following ($000): Three Months Ended Six Months Ended December 31, December 31, 2015 2014 2015 2014 Service cost $ 637 $ 673 $ 1,320 $ 1,353 Interest cost 103 179 214 360 Expected return on plan assets (261 ) (267 ) (541 ) (537 ) Net amortization 17 (148 ) 63 (509 ) Net periodic pension costs $ 496 $ 437 $ 1,056 $ 667

Accumulated Other Comprehensi38

Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income ("AOCI") by Component, Net of Tax	The changes in accumulated other comprehensive income (“AOCI") by component, net of tax, for the six months ended December 31, 2015 were as follows ($000): Foreign Total Currency Defined Accumulated Other Translation Benefit Comprehensive Adjustment Pension Plan Income (Loss) AOCI - June 30, 2015 $ 9,466 $ (801 ) $ 8,665 Other comprehensive income (loss) before reclassifications (13,562 ) - (13,562 ) Amounts reclassified from AOCI - 49 49 Net current-period other comprehensive income (loss) (13,562 ) 49 (13,513 ) AOCI - December 31, 2015 $ (4,096 ) $ (752 ) $ (4,848 )

Recent Accounting Pronounceme39

Recent Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Reclassification of deferred tax assets	$ 16,099	$ 2,210
Reclassification of deferred tax liability	6,303	$ 7,105
Adopted Pronouncements
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Reclassification of deferred tax assets	13,300
Reclassification of deferred tax liability	$ 1,000

Investment - Additional Informa

Investment - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Schedule Of Equity Method Investments [Line Items]
Total carrying value of investment	$ 12,343		$ 12,343		$ 11,914
Pro-rata share of earnings	$ 200	$ 200	$ 429	$ 516
Guangdong Fuxin Electronic Technology
Schedule Of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	20.20%		20.20%

Components of Inventories (Deta

Components of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 67,795	$ 71,210
Work in progress	55,805	52,726
Finished goods	44,328	40,452
Inventories, Total	$ 167,928	$ 164,388

Property Plant and Equipment (D

Property Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Property Plant And Equipment [Abstract]
Land and improvements	$ 4,619	$ 4,566
Buildings and improvements	91,620	91,171
Machinery and equipment	371,378	366,560
Construction in progress	24,333	17,749
Property, Plant and Equipment, gross	491,950	480,046
Less accumulated depreciation	(291,387)	(276,234)
Property, Plant and Equipment, net	$ 200,563	$ 203,812

Property, Plant and Equipment -

Property, Plant and Equipment - Additional Information (Detail) $ in Millions	Dec. 31, 2015USD ($)
Property Plant And Equipment [Abstract]
Carrying value of land and building	$ 1.2

Changes in Carrying Amount of G

Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	6 Months Ended
	Dec. 31, 2015USD ($)
Goodwill [Line Items]
Balance-beginning of period	$ 195,894
Foreign currency translation	(2,020)
Balance-end of period	193,874
II-VI Laser Solutions
Goodwill [Line Items]
Balance-beginning of period	43,578
Foreign currency translation	(63)
Balance-end of period	43,515
II-VI Photonics
Goodwill [Line Items]
Balance-beginning of period	99,426
Foreign currency translation	(1,957)
Balance-end of period	97,469
II- VI Performance Products
Goodwill [Line Items]
Balance-beginning of period	52,890
Balance-end of period	$ 52,890

Gross Carrying Amount and Accum

Gross Carrying Amount and Accumulated Amortization of Intangible Assets Other Than Goodwill (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 169,154	$ 170,450
Accumulated Amortization	(53,215)	(47,988)
Net Book Value	115,939	122,462
Trademarks
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	15,663	15,869
Accumulated Amortization	(1,148)	(1,111)
Net Book Value	14,515	14,758
Technology and Patents
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	49,933	50,520
Accumulated Amortization	(20,556)	(18,838)
Net Book Value	29,377	31,682
Customer Lists
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	101,988	102,489
Accumulated Amortization	(30,039)	(26,583)
Net Book Value	71,949	75,906
Other
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,570	1,572
Accumulated Amortization	(1,472)	(1,456)
Net Book Value	$ 98	$ 116

Goodwill and Other Intangible46

Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Goodwill And Other Intangible Assets [Line Items]
Amortization expense recorded on intangible assets	$ 3	$ 2.9	$ 6	$ 6
Carrying amount of indefinite trade names acquired	$ 14.2		$ 14.2
Technology and Patents
Goodwill And Other Intangible Assets [Line Items]
Remaining amortization period of patents and customer lists, in months			104 months
Technology and Patents | Minimum
Goodwill And Other Intangible Assets [Line Items]
Amortization period of finite lived intangible assets, in months			60 months
Technology and Patents | Maximum
Goodwill And Other Intangible Assets [Line Items]
Amortization period of finite lived intangible assets, in months			240 months
Customer Lists
Goodwill And Other Intangible Assets [Line Items]
Remaining amortization period of patents and customer lists, in months			135 months
Customer Lists | Minimum
Goodwill And Other Intangible Assets [Line Items]
Amortization period of finite lived intangible assets, in months			120 months
Customer Lists | Maximum
Goodwill And Other Intangible Assets [Line Items]
Amortization period of finite lived intangible assets, in months			240 months

Estimated Amortization Expense

Estimated Amortization Expense for Existing Intangible Assets for Each of Five Succeeding Fiscal Years (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Remaining 2,016	$ 5,804
2,017	11,607
2,018	11,067
2,019	10,706
2,020	$ 10,313

Components of Debt (Detail)

Components of Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Line Of Credit Facility [Line Items]
Total debt	$ 146,491	$ 175,957
Current portion of long-term debt	(20,000)	(20,000)
Long-term debt, less current portion	126,491	155,957
Line of credit
Line Of Credit Facility [Line Items]
Total debt	89,000	108,500
Term Loans
Line Of Credit Facility [Line Items]
Total debt	55,000	65,000
Yen denominated line of credit
Line Of Credit Facility [Line Items]
Total debt	$ 2,491	$ 2,457

Components of Debt (Parenthetic

Components of Debt (Parenthetical) (Detail) - London Interbank Offered Rate (LIBOR)	6 Months Ended
	Dec. 31, 2015
Line of credit
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	1.25%
Term Loans
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	1.25%
Yen denominated line of credit
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	0.625%

Debt - Additional Information (

Debt - Additional Information (Detail)	6 Months Ended
	Dec. 31, 2015USD ($)	Dec. 31, 2015JPY (¥)	Jun. 30, 2015USD ($)	Jun. 30, 2015JPY (¥)	Dec. 31, 2014
Line Of Credit Facility [Line Items]
Available credit under lines of credit	$ 136,100,000		$ 116,600,000
Total outstanding letters of credit	$ 1,500,000		$ 1,500,000
Weighted average interest rate of total borrowings	1.50%	1.50%			1.90%
Revolving Credit Facility
Line Of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity	$ 225,000,000
Credit facility, term	5 years
Debt instrument, maturity date	Sep. 10, 2018
Term Loans
Line Of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity	$ 100,000,000
Term loan, quarterly principal Payment	$ 5,000,000
Term loan, maturity date	Sep. 10, 2018
Term loan, first quarterly principal payment commencement date	Oct. 1, 2013
Yen denominated line of credit
Line Of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity	$ 4,100,000	¥ 500,000,000
Debt instrument, month and year of extend maturity	2020-08
Yen Loan
Line Of Credit Facility [Line Items]
Amount borrowed | ¥		¥ 300,000,000		¥ 300,000,000
London Interbank Offered Rate (LIBOR) | Term Loans
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	1.25%
London Interbank Offered Rate (LIBOR) | Yen denominated line of credit
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	0.625%
Minimum | Base Rate Option | Revolving Credit Facility
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	0.00%
Minimum | Euro Rate Option | Revolving Credit Facility
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	0.75%
Minimum | London Interbank Offered Rate (LIBOR) | Yen denominated line of credit
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	0.625%
Maximum | Revolving Credit Facility
Line Of Credit Facility [Line Items]
Credit facility, optional additional borrowing amount	$ 100,000,000
Maximum | Base Rate Option | Revolving Credit Facility
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	0.075%
Maximum | Euro Rate Option | Revolving Credit Facility
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	1.75%
Maximum | London Interbank Offered Rate (LIBOR) | Yen denominated line of credit
Line Of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	1.50%

Remaining Annual Amounts of Pri

Remaining Annual Amounts of Principal Payments of Credit Facility (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Line Of Credit Facility [Line Items]
Year 1	$ 20,000
Year 2	20,000
Year 3	104,000
Year 5	2,491
Total debt	146,491	$ 175,957
Term Loans
Line Of Credit Facility [Line Items]
Year 1	20,000
Year 2	20,000
Year 3	15,000
Total debt	55,000	65,000
Yen Line of Credit
Line Of Credit Facility [Line Items]
Year 5	2,491
Total debt	2,491	2,457
U.S. Dollar Line of Credit
Line Of Credit Facility [Line Items]
Year 3	89,000
Total debt	$ 89,000	$ 108,500

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Income Tax Contingency [Line Items]
Effective income tax rate	18.30%	16.40%
U.S. statutory rate	35.00%
Unrecognized tax benefits that would impact effective tax rate	$ 5.1		$ 4
United States Internal Revenue Service | Earliest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2,012
United States Internal Revenue Service | Latest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2,015
California's Franchise Tax Board | Tax Year 2011
Income Tax Contingency [Line Items]
Income tax examination, year(s) under examination	2,011
California's Franchise Tax Board | Tax Year 2012
Income Tax Contingency [Line Items]
Income tax examination, year(s) under examination	2,012
Federal Ministry of Finance, Germany | Tax Year 2012
Income Tax Contingency [Line Items]
Income tax examination, year(s) under examination	2,012
Federal Ministry of Finance, Germany | Tax Year 2013
Income Tax Contingency [Line Items]
Income tax examination, year(s) under examination	2,013
State Jurisdictions | Earliest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2,011
State Jurisdictions | Latest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2,015
Foreign Taxing Jurisdictions | Earliest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2,008
Foreign Taxing Jurisdictions | Latest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2,015

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Weighted Average
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	193,000	976,000	212,000	927,000

Computation of Earnings Per Sha

Computation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Net earnings	$ 18,991	$ 22,096	$ 36,205	$ 34,398
Weighted average shares	61,165	61,129	61,194	61,319
Basic earnings per common share:	$ 0.31	$ 0.36	$ 0.59	$ 0.56
Dilutive effect of common stock equivalents	1,508	1,147	1,507	1,213
Diluted weighted average common shares	62,673	62,276	62,701	62,532
Diluted earnings per common share:	$ 0.30	$ 0.35	$ 0.58	$ 0.55

Segment Reporting - Additional

Segment Reporting - Additional Information (Detail)	6 Months Ended
	Dec. 31, 2015Segment
Segment Reporting [Abstract]
Number of reporting segments	3

Financial Information of Compan

Financial Information of Company's Operation by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Revenues	$ 191,434	$ 176,736	$ 380,641	$ 362,569
Operating income	21,781	16,531	43,509	35,927
Interest expense	(597)	(1,038)	(1,246)	(2,242)
Other income (expense), net	994	9,295	2,051	7,613
Income taxes	(3,187)	(2,692)	(8,109)	(6,900)
Net earnings	18,991	22,096	36,205	34,398
Depreciation and amortization	13,819	13,071	27,124	26,632
Segment assets	1,043,445		1,043,445		$ 1,058,164
Expenditures for property, plant and equipment	9,732	10,079	19,156	31,609
Investment	12,343		12,343		11,914
Goodwill	193,874		193,874		195,894
Eliminations
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Inter-segment revenues	(9,159)	(11,178)	(19,115)	(21,290)
II-VI Laser Solutions
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Goodwill	43,515		43,515		43,578
II-VI Laser Solutions | Operating Segments
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Revenues	70,191	67,655	141,774	140,454
Inter-segment revenues	4,850	5,498	9,380	10,562
Operating income	11,251	12,226	23,426	25,149
Depreciation and amortization	3,691	3,368	7,395	6,901
Segment assets	331,797		331,797
Expenditures for property, plant and equipment	3,475	3,372	9,355	19,438
Goodwill	43,515		43,515
II-VI Photonics
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Goodwill	97,469		97,469		99,426
II-VI Photonics | Operating Segments
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Revenues	74,264	60,853	146,159	124,491
Inter-segment revenues	2,766	3,800	5,797	6,620
Operating income	7,455	413	13,739	2,485
Depreciation and amortization	4,980	5,229	10,073	10,751
Segment assets	435,297		435,297
Expenditures for property, plant and equipment	4,471	3,076	6,623	5,969
Goodwill	97,469		97,469
II- VI Performance Products
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Goodwill	52,890		52,890		$ 52,890
II- VI Performance Products | Operating Segments
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Revenues	46,979	48,228	92,708	97,624
Inter-segment revenues	1,543	1,880	3,938	4,108
Operating income	3,076	3,892	6,345	8,293
Depreciation and amortization	5,148	4,474	9,656	8,980
Segment assets	276,351		276,351
Expenditures for property, plant and equipment	1,786	$ 3,631	3,178	$ 6,202
Investment	12,343		12,343
Goodwill	$ 52,890		$ 52,890

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Detail)	6 Months Ended
	Dec. 31, 2015shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of share based compensation expense allocated to cost of sales	15.00%
Percentage of share based compensation expense allocated to selling, general and administrative expense	85.00%
Omnibus Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock authorized for issuance under the Plan	4,900,000

Share-Based Compensation Expens

Share-Based Compensation Expense by Award Type (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	$ 3,733	$ 2,739	$ 7,598	$ 6,364
Stock Options and Cash-Based Stock Appreciation Rights
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	751	1,096	3,137	3,215
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	1,554	1,063	2,785	2,159
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	$ 1,428	$ 580	$ 1,676	$ 990

Fair Value of Financial Instr59

Fair Value of Financial Instruments - Additional Information (Detail) - Fair Value Inputs Level2 [Member] - USD ($)	Dec. 31, 2015	Jun. 30, 2015
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign currency forward contract liabilities	$ 35,000
Foreign currency forward contract assets		$ 130,000

Derivative Instruments - Additi

Derivative Instruments - Additional Information (Detail)	6 Months Ended
	Dec. 31, 2015USD ($)	Dec. 31, 2015JPY (¥)	Jun. 30, 2015USD ($)
Minimum
Derivative [Line Items]
Foreign currency forward exchange contracts, expiration date	Jan. 31, 2016
Maximum
Derivative [Line Items]
Foreign currency forward exchange contracts, expiration date	Apr. 30, 2016
Foreign Currency Forward Exchange Contracts
Derivative [Line Items]
Foreign currency forward exchange contracts, notional amount | $	$ 8,700,000		$ 10,800,000
Foreign Currency Forward Exchange Contracts | Minimum
Derivative [Line Items]
Foreign currency forward exchange contracts, notional amount		¥ 100,000,000
Foreign Currency Forward Exchange Contracts | Maximum
Derivative [Line Items]
Foreign currency forward exchange contracts, notional amount		¥ 350,000,000

Change in Carrying Value of Com

Change in Carrying Value of Company's Warranty Reserve (Detail) $ in Thousands	6 Months Ended
	Dec. 31, 2015USD ($)
Guarantees [Abstract]
Balance-beginning of period	$ 3,251
Payments made during the period	(1,536)
Additional warranty liability recorded during the period	1,525
Balance-end of period	$ 3,240

Post-Retirement Benefits - Addi

Post-Retirement Benefits - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Contributions to the Compensation Plan by the employer	$ 0.5	$ 0.6	$ 1	$ 1.2
Contributions to the Compensation Plan by the employer in remainder of fiscal year 2016			1
Unfunded Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Pension liability	$ 9.8		$ 9.8

Schedule of Net Periodic Pensio

Schedule of Net Periodic Pension Costs (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Net Periodic Benefit Cost [Abstract]
Service cost	$ 637	$ 673	$ 1,320	$ 1,353
Interest cost	103	179	214	360
Expected return on plan assets	(261)	(267)	(541)	(537)
Net amortization	17	(148)	63	(509)
Net periodic pension costs	$ 496	$ 437	$ 1,056	$ 667

Share Repurchase Program (Detai

Share Repurchase Program (Detail) - USD ($)	6 Months Ended	17 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Aug. 31, 2014
Equity [Abstract]
Stock repurchase program, authorized amount			$ 50,000,000
Purchase of common stock, shares		1,318,987
Purchase of Treasury Stock	$ 6,284,000	$ 19,000,000

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income ("AOCI") by Component, Net of Tax (Detail) $ in Thousands	6 Months Ended
	Dec. 31, 2015USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, net of tax Beginning balance	$ 8,665
Other comprehensive income (loss) before reclassifications	(13,562)
Amounts reclassified from AOCI	49
Net current-period other comprehensive income (loss)	(13,513)
AOCI, net of tax Ending balance	(4,848)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, net of tax Beginning balance	9,466
Other comprehensive income (loss) before reclassifications	(13,562)
Net current-period other comprehensive income (loss)	(13,562)
AOCI, net of tax Ending balance	(4,096)
Defined Benefit Pension Plan
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, net of tax Beginning balance	(801)
Amounts reclassified from AOCI	49
Net current-period other comprehensive income (loss)	49
AOCI, net of tax Ending balance	$ (752)

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - Subsequent Event $ / shares in Units, $ in Millions	Feb. 02, 2016$ / shares	Jan. 19, 2016USD ($)Business
Subsequent Event [Line Items]
Number of business acquired | Business		2
Epi Works
Subsequent Event [Line Items]
Business acquisition, date of agreement		Feb. 1, 2016
Cash paid for acquisition		$ 43
Potential earn-out payments		$ 6
A N A D I G I C S
Subsequent Event [Line Items]
Business acquisition, date of agreement		Jan. 15, 2016
Cash paid for acquisition		$ 61
Share price | $ / shares	$ 0.66
Tender offer expiration date	Mar. 1, 2016