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Debt - Additional Information (Detail) | 3 Months Ended
--- | ---
Sep. 30, 2018 USD ($) Day $ / shares shares | Sep. 30, 2017 USD ($)
Debt Instrument [Line Items] |  |
Debt issuance cost |  | $ 1,100,000
Percentage of voting capital stock | 65.00% |
0.50% Convertible Senior Notes due 2022 [Member] |  |
Debt Instrument [Line Items] |  |
Debt instrument aggregate principal amounts | $ 525,000,000 |
Net proceeds from issuance of convertible debt | $ 514,500,000 |
Interest rates on borrowings | 0.50% |
Debt instrument maturity date | Jun. 15, 2022 |
Conversion of notes in multiples of principal amounts | $ 1,000 |
Convertible number of shares, principal amount of notes | shares | 13.6947 |
Initial conversion price per share of common stock | $ / shares | $ 73.02 |
Note repurchase price, percentage of principal amount of notes | 100.00% |
Sale price of common stock, minimum threshold percentage | 130.00% |
Sale of common stock, threshold trading days | Day | 20 |
Sale of common stock, threshold consecutive trading days | Day | 30 |
Equity component of the principal amount of the convertible debt | $ 82,100,000 |
Nonconvertible debt borrowing rate | 4.39% |
Debt instrument term | 5 years |
Debt issuance costs | $ 11,100,000 |
Initial purchaser’s discount | 10,500,000 |
Legal, accounting, and printing costs | 579,000 |
Convertible debt issuance costs pro rata to equity components | 1,900,000 |
Convertible debt issuance costs pro rata to debt components | $ 9,200,000 |
Debt amortization period | 5 years |
Unamortized amounts of debt issuance costs | $ 7,000,000 |
Unamortized amounts of debt discount | $ 62,900,000 |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Debt amortization period | 60 months |
Line of credit facility amount |  | 200,000,000
Line of credit facility allowable requests for additional borrowing |  | 100,000,000
Maturity period | Sep. 27, 2022 |
Repayment date, description | The revolving credit facility is required to be repaid in full on the earlier of (i) September 27, 2022 and (ii) the date 91 days prior to the Maturity Date of the Notes if the Notes have not been refinanced in full by such date. |
Debt issuance cost | $ 2,300,000 |
Description of base rate | The revolving credit facility bears interest at our election of a Base Rate plus an Applicable Margin or LIBOR plus an Applicable Margin. Swingline loans bear interest at a Base Rate plus an Applicable Margin. The Base Rate is a floating rate that is the greater of the Prime Rate, the Federal Funds Rate plus 50 basis points, or LIBOR plus 100 basis points. The Applicable Margin is based on a sliding scale which ranges from 0.25 to 100 basis points for Base Rate loans and 100 basis points to 175 basis points for LIBOR loans. |
Outstanding principal amount | $ 0 |
Covenant description | Under the Agreement, there are various restrictive covenants, including three financial covenants which limit the consolidated total leverage ratio, or leverage ratio, the consolidated interest coverage ratio, or interest coverage ratio, a restriction which places a limit on the amount of capital expenditures that may be made in any fiscal year, a restriction that permits up to $50 million per fiscal quarter of accounts receivable financings, and sets the Specified Leverage Ratio. The leverage ratio is the ratio of debt as of the measurement date to earnings before interest, taxes, depreciation and amortization, or EBITDA, for the four consecutive quarters ending with the quarter of measurement. The current leverage ratio shall not exceed 3.50 to 1.00 provided that for the four fiscal quarters ending after the date of a material acquisition, such maximum leverage ratio shall be adjusted to 3.75 to 1.00, and thereafter, shall not be more than 3.50 to 1.00. The interest coverage ratio is EBITDA to interest expense for the four consecutive quarters ending with the quarter of measurement. The interest coverage ratio must not be less than 3.50 to 1.0 during the term of the Agreement. The Specified Leverage Ratio is the ratio used in determining, among other things, whether we are permitted to make dividends and/or prepay certain indebtedness, at a fixed ratio of 3.00 to 1.00. As of the end of the quarter, we were in compliance with the restrictive covenants |
Maximum accounts receivable financings per quarter | $ 50,000,000 |
Maximum leverage ratio permitted | 3.50% |
Minimum interest coverage ratio | 3.50% |
Fixed coverage ratio | 3.00% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | For The First Four Fiscal Quarters Ending After Date of Material Acquisition [Member] |  |
Debt Instrument [Line Items] |  |
Maximum leverage ratio permitted | 3.75% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | Thereafter [Member] |  |
Debt Instrument [Line Items] |  |
Maximum leverage ratio permitted | 3.50% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | Federal Funds Rates [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.50% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | LIBOR [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.00% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Commitment fee percentage of unused portion | 0.175% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member] | LIBOR [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.00% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member] | Base Rate [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.0025% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Commitment fee percentage of unused portion | 0.25% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] | LIBOR [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.75% |
Amendment and Restatement Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] | Base Rate [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.00% |
Amendment and Restatement Agreement [Member] | Letter of Credit [Member] |  |
Debt Instrument [Line Items] |  |
Line of credit facility amount |  | 20,000,000
Amendment and Restatement Agreement [Member] | Bridge Loan [Member] |  |
Debt Instrument [Line Items] |  |
Line of credit facility amount |  | $ 20,000,000

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- Definition Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants. + 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 470 -Section 50 -Paragraph 3 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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