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Stockholders' Equity and Share-Based Compensation - Restricted Stock Units (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
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Apr. 04, 2015
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Mar. 29, 2014
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Compensation expense | $ 510us-gaap_ShareBasedCompensation | $ 376us-gaap_ShareBasedCompensation |
| Restricted Stock Units | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Awards vested |
398us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember |
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| Shares withheld to satisfy employee tax obligations |
151us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember |
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| Adjustment related employee tax obligations |
358us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember |
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| Compensation expense |
237us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember |
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| Unrecognized compensation expense |
$ 1,109us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember |
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| Weighted-average period of unrecognized share-based compensation expense | 10 months 2 days | |
| Time-Based Restricted Stock Units | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Awards vested |
221us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = prts_TimeBasedRestrictedStockUnitMember |
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| Performance-Based Restricted Stock Units | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Awards vested |
177us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = prts_PerformanceBasedRestrictedStockUnitMember |
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- Definition
The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. No definition available.
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- Definition
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. No definition available.
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| X | ||||||||||
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- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. No definition available.
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- Details
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- Details
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