Board of Directors, Term of Service

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Common Stock, Number of Board Members Shareholders Entitled To Elect

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Minimum Single Shareholder Ownership Percentage to Call Stockholder Meeting

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- Definition

Number of Board Members Required to Approve Sale or Acquisition of Business

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Number of Board Members Shareholders Entitled To Elect

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- Definition

Preferred Stock, Number of Board Members Shareholders Entitled To Elect

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Aggregate dividends declared during the period for each share of common stock outstanding.

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The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

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Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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-Topic 505

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-Section S99

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-Topic 942

-SubTopic 405

-Section 45

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Amount of paid and unpaid paid-in-kind dividends (PIK) declared for classes of stock, for example, but not limited to, common and preferred.

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- Definition

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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-Name Accounting Standards Codification

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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-Publisher FASB

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-SubTopic 10

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-Paragraph 2

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- Definition

Number of options outstanding, including both vested and non-vested options.

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-Topic 718

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The increase (decrease) during the period in the number of shares issued.

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-Topic 505

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Number of shares of common and preferred stock retired from treasury during the period.

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Equity and Earnings (Loss) per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended					12 Months Ended
	Apr. 09, 2014	Mar. 17, 2014	Apr. 10, 2013	Mar. 18, 2013	Jan. 03, 2012	Dec. 31, 2014 board_member	Dec. 31, 2013	Dec. 31, 2012
Equity [Abstract]
Dividends declared (in dollars per share)		$ 0.05		$ 0.05
Dividends	$ 907us-gaap_Dividends		$ 916us-gaap_Dividends
Dividends paid	884us-gaap_PaymentsOfDividends		897us-gaap_PaymentsOfDividends			907us-gaap_PaymentsOfDividends	916us-gaap_PaymentsOfDividends
Dividend equivalents paid	$ 23us-gaap_DividendsPaidinkind		$ 19us-gaap_DividendsPaidinkind
Number of board members common stock shareholders entitled To elect						4
Total number of board members						9
Number of board members preferred stock shareholders entitled to elect						5
Board of directors, term of service						1 year
Minimum single shareholder ownership percentage to call special stockholder meeting (as a percent)						10.00%
Number of board members required to approve sale or acquisition of business						6
Treasury stock, shares retired (in shares)					1,414,379us-gaap_TreasuryStockSharesRetired
Reduction in number of issued shares					1,414,379
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)						4,000	10,000	20,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of nonvested shares (in shares)						278,900	569,296	933,887
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of nonvested shares (in shares)						413,288	371,502	423,264
Director [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares remaining for issuance						4,000
Director [Member] \| Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares remaining for issuance						396,288