Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation and Employee Benefit Plans Summary of Restricted Stock Units and Restricted Stock Award Activity (Details)

v2.4.1.9
Stock-Based Compensation and Employee Benefit Plans Summary of Restricted Stock Units and Restricted Stock Award Activity (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2012
Schedule of Non-vested Restricted Stock Units and Restricted Stock Awards[Roll Forward]    
Number of shares outstanding, beginning balance 4,484us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber  
Number of shares, granted 1,786us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod 1,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Number of shares, vested (2,467)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod  
Number of shares, canceled (291)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod  
Number of shares outstanding, ending balance 3,512us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber  
Schedule of Non-Vested Restricted Stock Units and Restricted Stock Awards Weighted Average Grant Date Fair Value [Roll Fowards]    
Weighted-average grant date fair value outstanding, beginning $ 6.40us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue  
Weighted-average grant date fair value, granted $ 8.85us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue  
Weighted-average grant date fair value, vested $ 7.30us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue  
Weighted-average grant date fair value, canceled $ 6.57us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue  
Weighted-average grant date fair value outstanding, ending $ 7.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue