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Summary of Operations and Significant Accounting Policies (Details 1) | 12 Months Ended
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Dec. 31, 2012
Buildings [Member] |
Summary of property, equipment and software over estimated useful life |
Property, Plant and Equipment, Useful Life | 39 years
Office furniture and fixtures [Member] |
Summary of property, equipment and software over estimated useful life |
Property, Plant and Equipment, Useful Life | 7 years
Computer hardware and software [Member] | Maximum [Member] |
Summary of property, equipment and software over estimated useful life |
Property, Plant and Equipment, Useful Life | 10 years
Computer hardware and software [Member] | Minimum [Member] |
Summary of property, equipment and software over estimated useful life |
Property, Plant and Equipment, Useful Life | 3 years
Aircraft [Member] |
Summary of property, equipment and software over estimated useful life |
Property, Plant and Equipment, Useful Life | 20 years
Leasehold improvements [Member] |
Summary of property, equipment and software over estimated useful life |
Leasehold improvements | Life of lease

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- Details
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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2155824 + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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