XML 14 R54.htm IDEA: XBRL DOCUMENT v2.4.1.9
Stockholders' Equity and Equity Compensation - Binomial Option-Pricing Model Assumptions (Details) (Employee Stock Option [Member], USD $)
3 Months Ended
Mar. 31, 2014
Employee Stock Option [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant-date fair value (in Dollars per share) $ 11.27us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Volatility 41.60%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Expected term (years) 7 years
Dividend yield 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Risk-free rate 2.30%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember