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Commitments and Contingencies (Details 2) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended | 27 Months Ended
--- | --- | --- | ---
Mar. 31, 2014 case | Dec. 31, 2013 case | Mar. 31, 2014
Business acquisition, contingent consideration |  |  |
Accrued liability for the outcomes of non-income based tax audits | $ 10.5 | $ 16.1 | $ 10.5
Litigation and Claims |  |  |
Number of heavy equipment statutes cases tried and completed in Texas state district court | 3 | 3 |
Number of other state district court cases in which the entity filed motions for summary judgment | 2 | 2 |
Ad valorem tax benefit | 2.3 |  | 17.1
Ad valorem tax benefit agreed to by a number of appraisal review boards and county appraisal districts | 3.3 |  | 3.3
Ad valorem tax benefit in litigation | 13.8 |  | 13.8
Maximum |  |  |
Business acquisition, contingent consideration |  |  |
Contingent payments | $ 46 |  | $ 46

X
- Definition The amount of ad valorem tax expense (benefit) included as a component of cost of goods sold (excluding depreciation and amortization). + References No definition available. + Details
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- Definition The amount of ad valorem tax expense (benefit) agreed to by one or more appraisal review boards and/or county appraisal districts. + References No definition available. + Details
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- Definition Represents the number of heavy equipment statutes cases tried and completed to which the entity is a party. + References No definition available. + Details
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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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