2.2.0.7 false Derivatives and Financial Instruments (Policies) 0406 - Disclosure - Derivatives and Financial Instruments (Policies) true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Derivatives and Financial Instruments (Policies) [Abstract] 0 pde_DerivativesAndFinancialInstrumentsPoliciesAbstract pde false na duration Derivatives and Financial Instruments Policies. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string Derivatives and Financial Instruments Policies. false 3 Adoption of ASC Topic 815 and its impact 1 pde_AdoptionOfAscTopic815AndItsImpactTextBlock pde false na duration Adoption of ASC Topic 815 and its impact. false false false false false false false false false false false verboselabel false 1 false false false false 0 0   <div align="justify" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">All of our foreign currency forward contracts were accounted for as cash flow hedges under ASC Topic 815, <i>Derivatives and Hedging</i>. The fair market value of these derivative instruments is included in other current assets or accrued expenses and other current liabilities, with the cumulative unrealized gain or loss included in accumulated other comprehensive income in our consolidated balance sheet. The payroll and related costs that are being hedged are included in accrued expenses and other current liabilities in our consolidated balance sheet, with the realized gain or loss associated with the revaluation of these liabilities from euros to U.S. dollars included in other income (expense). Amounts recorded in accumulated other comprehensive income associated with the derivative instruments are subsequently reclassed into other income (expense) as earnings are affected by the underlying hedged forecasted transactions. The estimated fair market value of our outstanding foreign currency forward contracts resulted in an asset of approximately $0.4 million at September 30, 2010. Hedge effectiveness is measured quarterly based on the relative cumulative changes in fair value between derivative contracts and the hedged item over time. Any change in fair value resulting from ineffectiveness is recognized immediately in earnings and recorded to other income (expense). We did not recognize a gain or loss due to hedge ineffectiveness in our consolidated statements of operations for the nine months ended September 30, 2010 related to these derivative instruments. </div> </div>  <!-- Begin Block Tagged false false false us-types:textBlockItemType textblock Adoption of ASC Topic 815 and its impact. No authoritative reference available. false 1 2 false UnKnown UnKnown UnKnown false true