XML 19 R57.htm IDEA: XBRL DOCUMENT v2.4.1.9
Stockholders' Equity and Stock-Based Compensation - PSU Valuation Assumptions (Details) (Performance-Based Restricted Stock Units (PSUs) [Member])
3 Months Ended
Mar. 28, 2015
Performance-Based Restricted Stock Units (PSUs) [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of PSUs granted and outstanding (in shares) 40,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
Expected Dividend 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
Range of risk-free interest rates, minimum 0.25%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
Range of risk-free interest rates, maximum 1.10%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
Range of expected volatilities for peer group, minimum 23.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
Range of expected volatilities for peer group, maximum 65.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember