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v2.4.1.9

Supplemental Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Supplemental disclosures: |  |  |
Interest paid | $ 0us-gaap_InterestPaid | $ 1us-gaap_InterestPaid | $ 44us-gaap_InterestPaid
Income taxes paid, net | 26,456us-gaap_IncomeTaxesPaidNet | 19,884us-gaap_IncomeTaxesPaidNet | 15,128us-gaap_IncomeTaxesPaidNet
Non-cash investing and financing activities: |  |  |
Non-cash capital expenditures | (79)us-gaap_CapitalExpendituresIncurredButNotYetPaid | 71us-gaap_CapitalExpendituresIncurredButNotYetPaid | (3,670)us-gaap_CapitalExpendituresIncurredButNotYetPaid
Trade-in of equipment | $ 0us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 | $ 315us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 | $ 300us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1

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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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