| **Stock-Based Compensation - Recorded in Corporate Expense, Net, on Consolidated Statements of Operations (Detail) (USD $)In Thousands, unless otherwise specified** | 12 Months Ended                                                                    |
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| **Disclosure of Compensation Related Costs, Share-based Payments [Abstract]**                                                                                        |                                                                               |   |   |
| Stock compensation expense before tax benefit                                                                                                                        | $ 210us-gaap_AllocatedShareBasedCompensationExpense                                | $ 247us-gaap_AllocatedShareBasedCompensationExpense | $ 998us-gaap_AllocatedShareBasedCompensationExpense |
| Income tax benefit                                                                                                                                                   | (81)us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense | (95)us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense | (384)us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense |
| Stock compensation expense after tax benefit                                                                                                                         | $ 129us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax                        | $ 152us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax | $ 614us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax |

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| - Definition
Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F
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| - Definition
The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.
+ References
No definition available.
+ Details**Name:**us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
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| - Details**Name:**us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
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| - Definition
The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901
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