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Share Based Compensation - Share Based Compensation Expense (Income) Included in Operating Expense (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Share based and Long Term Incentive Compensation | $ 23 | $ 3,219 | $ 3,481 | $ 3,532
Share-based compensation | (15) | 3,219 | 3,327 | 3,532
General and administrative expense [Member] |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Share based and Long Term Incentive Compensation | (276) | 1,290 |  |
Share-based compensation |  |  | 1,846 | 1,267
Other Operating Expenses [Member] |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Share based and Long Term Incentive Compensation | $ 299 | $ 1,929 |  |
Share-based compensation |  |  | $ 1,635 | $ 2,265

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- Definition Share Based and Long Term Incentive Compensation + 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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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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