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Indebtedness - Additional Information (Detail) - USD ($) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Apr. 14, 2015
Debt Instrument [Line Items] |  |  |
Available borrowings capacity under credit agreement |  | $ 40,189,000 |
Senior secured credit facility term | 5 years |  |
Senior secured credit facility, maturity date | Jun. 17, 2018 |  |
Description of variable rate basis | (i) LIBOR plus the “Applicable Rate” which is based upon the Consolidated Funded Debt Ratio (“Eurocurrency Rate Loan”) or (ii) the greater of (x) the Prime Rate, (y) the Federal Funds Rate plus 0.5%, and (z) the Daily One-Month LIBOR Rate plus 1.00%, plus, in the case of (x), (y) or (z) the Applicable Rate (“Alternate Base Rate Loan”). |  |
Ratio of consolidated current assets to consolidated current liabilities |  |  | 120.00%
Revolving Line of Credit |  |  |
Debt Instrument [Line Items] |  |  |
Available borrowings capacity under credit agreement | $ 200,000,000 |  |
Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Consolidated funded debt ratio |  |  | 350.00%
Capacity to increase borrowings under credit agreement | 95,985,000 |  |
Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Consolidated funded debt ratio |  |  | 325.00%
Term Loan | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Accordion feature | $ 100,000,000 |  |
Federal Funds Rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 0.50% |  |
LIBOR Rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 1.00% |  |

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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + 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 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://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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- Definition Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets. + 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 + Details
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