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Accrued Expenses and Long-Term Liabilities (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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| Other Liabilities Disclosure [Abstract] | ||
| Other Liabilities | $ 1,043us-gaap_OtherLiabilities | $ 2,089us-gaap_OtherLiabilities |
| Rent payable | 209us-gaap_DeferredRentCreditNoncurrent | 557us-gaap_DeferredRentCreditNoncurrent |
| Uncertain tax positions | 3,267us-gaap_LiabilityForUncertainTaxPositionsNoncurrent | 3,109us-gaap_LiabilityForUncertainTaxPositionsNoncurrent |
| Deferred Tax Liabilities, Other | 2,525us-gaap_DeferredTaxLiabilitiesOther | 0us-gaap_DeferredTaxLiabilitiesOther |
| Facilities realignment accrual | 43us-gaap_RestructuringReserveNoncurrent | 560us-gaap_RestructuringReserveNoncurrent |
| Regulatory Liability, Noncurrent | 2,500us-gaap_RegulatoryLiabilityNoncurrent | |
| Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities | 329us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities | 817us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities |
| Other | 270us-gaap_OtherLiabilitiesNoncurrent | 142us-gaap_OtherLiabilitiesNoncurrent |
| Liabilities, Noncurrent | 9,143us-gaap_LiabilitiesNoncurrent | 5,185us-gaap_LiabilitiesNoncurrent |
| Restructuring Reserve, Current | 517us-gaap_RestructuringReserveCurrent | 565us-gaap_RestructuringReserveCurrent |
| Self Insurance Reserve, Current | 463us-gaap_SelfInsuranceReserveCurrent | 1,020us-gaap_SelfInsuranceReserveCurrent |
| Liability for Uncertain Tax Positions, Current | 875us-gaap_LiabilityForUncertainTaxPositionsCurrent | 875us-gaap_LiabilityForUncertainTaxPositionsCurrent |
| Business Combination, Contingent Consideration, Liability, Current | 633us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent | |
| Business Acquisition, Transaction Costs | 1,225us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts | |
| Disposal Group, Including Discontinued Operation, Liabilities | 2,820pdii_UnearnedContractRevenueHeldforSale | 4,495pdii_UnearnedContractRevenueHeldforSale |
| Deferred Rent Credit, Current | 348us-gaap_DeferredRentCreditCurrent | 348us-gaap_DeferredRentCreditCurrent |
| Other Accrued Liabilities, Current | 5,933us-gaap_OtherAccruedLiabilitiesCurrent | 3,085us-gaap_OtherAccruedLiabilitiesCurrent |
| Accrued Liabilities, Current | 14,822us-gaap_AccruedLiabilitiesCurrent | 12,477us-gaap_AccruedLiabilitiesCurrent |
| Settlement Liabilities, Current | 500us-gaap_SettlementLiabilitiesCurrent | |
| Interest Payable, Current | $ 465us-gaap_InterestPayableCurrent | $ 0us-gaap_InterestPayableCurrent |
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- Definition
Unearned Contract Revenue Held for Sale No definition available.
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- Definition
Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. No definition available.
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- Definition
Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
For a classified balance sheet, the cumulative difference as of the balance sheet date between the payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, within one year of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
For a classified balance sheet, the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, more than one year after the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount classified as accounts payable and accrued liabilities attributable to disposal group held for sale or disposed of. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The current portion of the amount recognized for uncertain tax positions as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The noncurrent portion of the amount recognized for uncertain tax positions as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate carrying amount, as of the balance sheet date, of liabilities not separately disclosed in the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid within one year (or the normal operating cycle, if longer). No definition available.
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- Definition
Amounts payable for money transfers, money orders, and consumer payment service arrangements. Settlement liabilities include amounts payable to intermediaries for global payment transfers. No definition available.
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