Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies- Accounts Receivable (Details)

v2.4.0.8
Summary of Significant Accounting Policies- Accounts Receivable (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Changes in the Allowance for Doubtful Accounts [Roll Forward]    
Allowance for doubtful accounts, beginning of period $ 1,519 $ 1,174
Charges to costs and expenses 244 42
Account write-offs and other (136) 7
Allowance for doubtful accounts, end of period $ 1,627 $ 1,223