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The Company and Summary of Significant Accounting Policies - Retirement Plans (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Mar. 31, 2014
Mar. 31, 2015
Dec. 31, 2013
Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Percentage match of employee contribution   50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch    
Maximum percentage match of employee contribution as a percentage of eligible compensation   6.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent    
Matching contributions by employer $ 601us-gaap_DefinedContributionPlanCostRecognized $ 1,726us-gaap_DefinedContributionPlanCostRecognized $ 1,386us-gaap_DefinedContributionPlanCostRecognized $ 1,066us-gaap_DefinedContributionPlanCostRecognized