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Debt - Additional Information (Detail) - USD ($) |  | 9 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 06, 2017 | Mar. 31, 2017 | Mar. 31, 2016 | Oct. 20, 2015 | Sep. 30, 2014
Debt Instrument [Line Items] |  |  |  |  |
Debt issuance cost |  |  | $ 300,000 |  |
Percentage of voting capital stock |  | 65.00% |  |  |
Description of periodic payments |  | The term loan facility requires repayment over five years with nineteen quarterly principal payments, which began in the three months ended March 31, 2015. |  |  |
Quarterly payment beginning period |  | Mar. 31, 2015 |  |  |
Final principal payment |  | $ 90,000,000 |  |  |
First Four Quarters [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Quarterly principal payment |  | 1,900,000 |  |  |
Next Fourteen Quarters [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Quarterly principal payment |  | 3,800,000 |  |  |
Credit Agreement [Member] | Bridge Loan [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility amount |  | 20,000,000 |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Additional borrowing capacity |  |  |  | $ 100,000,000 |
Line of credit facility amount |  |  |  | $ 250,000,000 | $ 150,000,000
Amount borrowed under revolving credit facility |  | $ 100,000,000 |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Commitment fee percentage of unused portion |  | 0.25% |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Commitment fee percentage of unused portion |  | 0.45% |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Additional borrowing capacity | $ 200,000,000 |  |  |  |
Line of credit facility amount | $ 450,000,000 |  |  |  |
Credit Agreement [Member] | Letter of Credit [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility amount |  | $ 20,000,000 |  |  |
Credit Agreement [Member] | Term Loan Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility amount |  | 150,000,000 |  |  |
Amount borrowed under revolving credit facility |  | 150,000,000 |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt issuance cost |  | $ 5,000,000 |  |  |
Debt amortization period |  | 60 months |  |  |
Description of Base Rate |  | The revolving credit facility and term loans under the Credit Agreement bear 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 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 zero to 100 basis points for Base Rate loans and 100 basis points to 200 basis points for LIBOR loans. |  |  |
Maturity period |  | Sep. 30, 2019 |  |  |
Covenant description |  | Under the Credit 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, and a restriction which places a limit on the amount of capital expenditures that may be made in any fiscal year. 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 leverage ratio must not exceed 2.50 to 1.0 during the first two years of the agreement, and 2.0 to 1.0 during the last three years of the agreement. 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 Credit Agreement. As of March 31, 2017, we were in compliance with the restrictive covenants. |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Minimum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rates on borrowings |  | 1.85% |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rates on borrowings |  | 2.86% |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Federal Funds Effective Swap Rate [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate |  | 0.50% |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate |  | 1.00% |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate |  | 1.00% |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate |  | 2.00% |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Base Rate [Member] | Minimum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate |  | 0.00% |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Base Rate [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate |  | 1.00% |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Covenant description | The Incremental Amendment increased the maximum permitted leverage ratio during the last three years of the agreement from 2.0:1.0 to 2.50:1.00, with a further increase to 3.00:1.00 for the first four fiscal quarters ending after any acquisition having an aggregate consideration exceeding $150,000,000 and stepping down to 2.75:1.00 thereafter, and modified the negative covenants to permit up to $50,000,000 per fiscal quarter of accounts receivable financings. |  |  |  |
Maximum leverage ratio permitted | 250.00% |  |  |  |
Minimum acquisition consideration under credit agreement | $ 150,000,000 |  |  |  |
Maximum accounts receivable financings per quarter | $ 50,000,000 |  |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Subsequent Event [Member] | Last Three Years of Agreement [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum leverage ratio permitted | 200.00% |  |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Subsequent Event [Member] | For The First Four Fiscal Quarters Ending After Any Acquisition [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum leverage ratio permitted | 300.00% |  |  |  |
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Subsequent Event [Member] | Thereafter [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum leverage ratio permitted | 275.00% |  |  |  |
Credit Agreement and Related Amendments [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Amount borrowed under revolving credit facility |  | $ 223,800,000 |  |  |

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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://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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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://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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