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Debt - Additional Information (Detail) |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 29, 2017 USD ($) | Aug. 24, 2017 USD ($) | Jul. 28, 2016 USD ($) | Jun. 30, 2018 USD ($) d JPY (¥) | Jun. 30, 2017 USD ($) d $ / shares | Jun. 30, 2016 USD ($) | Jun. 30, 2018 JPY (¥) | Jun. 30, 2017 JPY (¥)
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Net proceeds after deducting initial purchasers discount and estimated offering expenses |  |  |  | $ 345,000,000 |  |  |  |
Proceeds from notes used to repurchase common stock |  |  |  | 49,875,000 |  | $ 6,284,000 |  |
Repayments of revolving credit facility |  |  |  | 292,000,000 | $ 25,000,000 | 65,700,000 |  |
Payment of debt issuance costs |  |  |  | 10,061,000 | $ 1,384,000 |  |  |
Offering costs attributable to equity component |  |  |  | $ 1,694,000 |  |  |  |
Weighted average interest rate of total borrowings |  |  |  | 1.30% | 2.20% |  | 1.30% | 2.20%
Total outstanding letters of credit |  |  |  | $ 400,000 | $ 1,300,000 |  |  |
Available credit under lines of credit |  |  |  | 246,400,000 | 73,500,000 |  |  |
Weighted average of total borrowings |  |  |  | 476,600,000 | 272,100,000 |  |  |
Credit facility, interest paid |  |  |  | 6,600,000 | 6,100,000 | 3,100,000 |  |
Credit facility, commitment fees paid |  |  |  | 6,600,000 | 6,100,000 | 3,100,000 |  |
Singapore Bank |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  | $ 600,000 | $ 600,000 |  |  |
Weighted average interest rate of total borrowings |  |  |  | 5.25% | 5.25% |  | 5.25% | 5.25%
Total outstanding letters of credit |  |  |  | $ 0 | $ 0 |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Debt instrument maturity date |  |  | Jul. 27, 2021 |  |  |  |  |
Line of credit, maximum borrowing capacity |  |  | $ 325,000,000 |  |  |  |  |
Credit facility, term |  |  | 5 years |  |  |  |  |
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 |  |  | Jul. 27, 2021 |  |  |  |  |
Term loan, first quarterly principal payment commencement date |  |  | Oct. 01, 2016 |  |  |  |  |
Yen denominated line of credit |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  | $ 4,500,000 |  |  | ¥ 500,000,000 |
Debt instrument, month and year of maturity |  |  |  | 2020-08 |  |  |  |
Line of credit, outstanding |  |  |  | $ 2,700,000 |  |  | ¥ 300,000,000 | ¥ 300,000,000
Letter Of Credit | Singapore Bank |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Line of credit facility |  |  |  |  | $ 300,000 | $ 200,000 |  |
London Interbank Offered Rate (LIBOR) | Term Loans |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Debt instrument, rate added on variable rate |  |  |  | 1.75% | 1.50% |  |  |
London Interbank Offered Rate (LIBOR) | Yen denominated line of credit |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Debt instrument, rate added on variable rate |  |  |  | 1.75% | 0.625% |  |  |
Prime Rate | Singapore Bank |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Debt instrument, rate added on variable rate |  |  |  | 1.00% | 1.00% |  |  |
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 |  |  | 1.25% |  |  |  |  |
Maximum | Euro Rate Option | Revolving Credit Facility |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Debt instrument, rate added on variable rate |  |  | 2.25% |  |  |  |  |
Maximum | London Interbank Offered Rate (LIBOR) | Yen denominated line of credit |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Debt instrument, rate added on variable rate |  |  |  | 1.75% |  |  |  |
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 |  |  | 1.00% |  |  |  |  |
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% |  |  |  |
0.25% Convertible Senior Note Due 2022 |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  | 0.25% |  |  | 0.25% |
Debt instrument maturity date |  |  |  | Sep. 01, 2022 |  |  |  |
Debt instrument maturity date description |  |  |  | The Notes mature on September 1, 2022, unless earlier repurchased by the Company or converted by holders in accordance with the terms of the Notes |  |  |  |
Debt instrument payment terms description |  |  |  | Interest is payable semi-annually in arrears on March 1 and September 1 of each year, beginning on March 1, 2018. |  |  |  |
Debt instrument frequency of periodic payment |  |  |  | semi-annually |  |  |  |
Debt instrument interest payable beginning date |  |  |  | Mar. 01, 2018 |  |  |  |
Effective interest rate |  |  |  | 4.50% | 4.50% |  | 4.50% | 4.50%
Debt instrument conversion, shares issued per $1,000 principal amount |  |  |  |  | 21.25 |  |  |
Debt instrument conversion, principal amount of each note converted |  |  |  |  | $ 1,000 |  |  |
Debt instrument conversion, conversion price per share | $ / shares |  |  |  |  | $ 47.06 |  |  |
Debt instrument conversion, If-converted value of notes |  |  |  |  | $ 318,500,000 |  |  |
Number of days within 30 consecutive trading days in which the closing price of the entity's common stock must exceed the conversion price for the notes to be convertible into common stock | d |  |  |  |  | 20 |  |  |
Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the notes to be convertible into common stock | d |  |  |  |  | 30 |  |  |
Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the notes to be convertible |  |  |  |  | 130.00% |  |  |
Number of consecutive business days immediately after any five consecutive trading day period during the note measurement period | ¥ |  |  |  | 5 |  |  |  |
Number of consecutive trading days before five consecutive business days during the note measurement period | d |  |  |  | 5 |  |  |  |
Offering costs attributable to debt component |  |  |  | $ 8,400,000 |  |  |  |
Offering costs attributable to equity component |  |  |  | 1,700,000 |  |  |  |
Unamortized discount |  |  |  | $ 49,300,000 |  |  |  |
Amortization period |  |  |  | 4 years |  |  |  |
0.25% Convertible Senior Note Due 2022 | Maximum |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Debt instrument conversion obligation trading price as percentage of product common stock closing sale price and conversion rate |  |  |  | 98.00% |  |  |  |
0.25% Convertible Senior Note Due 2022 | Initial Purchasers |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  | $ 300,000,000 |  |  |  |  |  |
Debt instrument, interest rate |  | 0.25% |  |  |  |  |  |
Sale of notes to initial purchasers settlement date | Aug. 29, 2017 |  |  |  |  |  |  |
Net proceeds after deducting initial purchasers discount and estimated offering expenses | $ 336,000,000 |  |  |  |  |  |  |
Proceeds from notes used to repurchase common stock | 49,900,000 |  |  |  |  |  |  |
Repayments of revolving credit facility | 252,000,000 |  |  |  |  |  |  |
Payment of debt issuance costs | $ 10,100,000 |  |  |  |  |  |  |
0.25% Convertible Senior Notes Over-Allotment Option | Initial Purchasers |  |  |  |  |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  | $ 45,000,000 |  |  |  |  |  |
Number of days option granted to purchase additional principal amount of notes |  | 30 days |  |  |  |  |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Average amount borrowed under the credit facility during the period. + References No definition available. + Details
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- Definition Amount of the fee for available but unused credit capacity under the credit facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date the first payment under the line of credit must be paid, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payment applied to interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payment applied to principal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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