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Debt - Additional Information (Detail) - 2015 Revolving Agreement [Member] - USD ($) | 9 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 02, 2015
Revolving credit facility [Member] |  |
Debt Instrument [Line Items] |  |
Line of credit |  | $ 25,000,000
Maximum limit of credit facility |  | $ 50,000,000
Term period of agreement | 5 years |
Interest rate description | Interest at either (i) a rate equal to the bank's prime rate; or (ii) a rate equal to LIBOR plus a margin. |
Fix rate to reduce fee on outstanding | 0.40% |
Letters of credit outstanding amount | $ 0 |
Debt instrument, covenant description | Under the new revolving credit facility, the Company covenants to maintain a maximum funded debt to EBITDA ratio of 3.5 to 1.0 and a minimum earnings before interest expense and income taxes to interest ratio of 4.0 to 1.0. The agreement also provides that the Company is permitted to pay dividends without limitation if it maintains a maximum funded debt to EBITDA ratio equal to or less than 2.0 to 1.0 and permits the Company to pay dividends in an amount equal to 25% of net income if it maintains a maximum funded debt to EBITDA ratio of greater than 2.0 to 1.0. |
Maximum funded debt to EBITDA ratio | 350.00% |
Percentage of net income to be paid as dividend if EBITDA ratio is greater than 2.0 to 1 | 25.00% |
Minimum earnings to interest ratio | 400.00% |
Revolving credit facility [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Unused commitment fee for borrowing | 0.30% |
Fee for outstanding letters of credit | 1.20% |
Revolving credit facility [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Unused commitment fee for borrowing | 0.20% |
Fee for outstanding letters of credit | 0.70% |
Revolving credit facility [Member] | Dividend Payment Covenant [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Maximum funded debt to EBITDA ratio | 200.00% |
Revolving credit facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Debt instrument, basis spread on variable rate | 1.75% |
Revolving credit facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Debt instrument, basis spread on variable rate | 0.95% |
Bank of America, N.A. [Member] |  |
Debt Instrument [Line Items] |  |
Letters of credit outstanding amount | $ 10,042,000 |

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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 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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