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Assumptions Used to Estimate Fair Value of Stock Options Granted (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2016 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number of shares, Options/SAR units granted | 104,000 | [1]
Employees |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number of shares, Options/SAR units granted | 0 |
[1] | In 2016, the Company granted 104,000 stock options only to non-employee directors of the Company. No SARs were granted during 2016.

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- Definition Share Based Compensation Arrangement by Share Based Payment Award Options and Stock Appreciation Rights Grants in Period + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Balance Type: |
Period Type: |