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Debt - Additional Information (Detail) |  | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 12, 2016 | Dec. 31, 2015 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Nov. 20, 2014 USD ($) | Jan. 06, 2012 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |
Company indebtedness |  | $ 7,000,000 | $ 7,000,000 | $ 0 |  |
Second Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Termination date of the Credit Agreement |  |  | Nov. 20, 2019 |  |  |
Remaining available borrowing capacity |  | $ 93,000,000 | $ 93,000,000 |  |  |
Credit facility covenant terms |  |  | (a) Fixed Charge Coverage Ratio. The Fixed Charge Coverage Ratio is not permitted to be less than 1.5 to 1.0, measured as of the end of each Fiscal Quarter, commencing with the Fiscal Quarter ended September 30, 2014. (b) Consolidated Debt to Consolidated EBITDA Ratio. The Consolidated Debt to Consolidated EBITDA Ratio is not permitted to exceed 3.00 to 1.0 measured as of the end of each Fiscal Quarter (and in the case of Consolidated EBITDA, for the four-quarter period ending on such date). |  |  |
Third Amended And Restated Credit Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Termination date of the Credit Agreement |  |  | Jan. 12, 2021 |  |  |
Federal Funds Rate [Member] | Third Amended And Restated Credit Agreement [Member] | Subsequent Event [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Interest rate | 0.50% |  |  |  |  |
Eurodollar Rate Loans [Member] | Third Amended And Restated Credit Agreement [Member] | Subsequent Event [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Interest rate | 1.00% |  |  |  |  |
Third Amended Credit Agreement [Member] | Revolver Loans [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Repayment of outstanding principal interest fee and cost due date |  |  | Jan. 12, 2021 |  |  |
Revolving Credit Facility [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Interest rate on the revolving credit facility |  | 1.39% | 1.39% | 1.30% |  |
Revolving Credit Facility [Member] | Second Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Outstanding borrowings under the revolver loans |  | $ 7,000,000 | $ 7,000,000 |  |  |
Revolving Credit Facility [Member] | Letter of Credit Facility Sublimit [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Revolving loans in a collective maximum principal amount |  | 15,000,000 | 15,000,000 |  | $ 15,000,000 |
Revolving Credit Facility [Member] | Swing Advance Loan Sublimit [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Revolving loans in a collective maximum principal amount |  | $ 5,000,000 | 5,000,000 |  | $ 5,000,000 |
Revolving Credit Facility [Member] | Minimum [Member] | Second Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Fixed charge coverage ratio as per credit agreement |  | 1.5 |  |  |  |
Revolving Credit Facility [Member] | Maximum [Member] | Second Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Consolidated debt to earnings before interest taxes depreciation amortization ratio as per the credit agreement |  | 3.0 |  |  |  |
Revolver Loans Portion Effective January 1 through June 30 [Member] | Second Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Revolving loans in a collective maximum principal amount |  | $ 150,000,000 | 150,000,000 |  |  |
Revolver Loans Portion Effective January 1 through June 30 [Member] | Third Amended And Restated Credit Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Revolving loans in a collective maximum principal amount |  | 250,000,000 | 250,000,000 |  |  |
Revolver Loans Portion Effective July 1 through December 31 [Member] | Second Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Revolving loans in a collective maximum principal amount |  | 100,000,000 | 100,000,000 |  |  |
Revolver Loans Portion Effective July 1 through December 31 [Member] | Third Amended And Restated Credit Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Revolving loans in a collective maximum principal amount |  | $ 200,000,000 | $ 200,000,000 |  |  |
Scenario, Previously Reported [Member] | Revolver Loans [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Revolving loans in a collective maximum principal amount |  |  |  |  |  | $ 100,000,000

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- Definition To remain in compliance with the financial covenants in the Second Amended Credit Agreement, the Company must maintain a certain fixed charge coverage ratio as set forth in the agreement. + References No definition available. + Details
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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + 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 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 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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- Definition Description of the conditions for borrowing under the credit facility including the nature of any restrictions. + 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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