Credit Facility	9 Months Ended
Sep. 30, 2015
Line of Credit Facility [Abstract]
Credit Facility	Credit Facility In September 2013, we entered into a credit agreement with Royal Bank of Canada, JPMorgan Chase Bank, N.A. and Bank of America, N.A. as lenders. The credit agreement provides a three-year, $35.0 million, revolving credit facility, which includes a maximum $10.0 million letter of credit facility. As of September 30, 2015 and December 31, 2014, we have no outstanding borrowings under this credit facility. Our obligations under the credit agreement are secured by a security interest on substantially all of our assets, including our intellectual property. The credit agreement contains customary financial and non-financial covenants, and are described in Note 4, Credit Facility of the Notes to Consolidated Financial Statements of our Annual Report on Form 10-K for the year ended December 31, 2014 filed with the SEC on March 11, 2015. We were in compliance with all financial and nonfinancial covenants under the revolving credit facility as of September 30, 2015. At our option, the revolving credit facility bears interest at a rate per annum based on either (i) an alternate base rate plus a margin ranging from 1.75% to 2.50% depending on our total leverage ratio, or (ii) the London interbank offered rate, or LIBOR, based on one, two, three or six month interest periods plus a margin ranging from 2.75% to 3.50% depending on our total leverage ratio. The alternate base rate is equal to the greatest of (i) the Royal Bank of Canada’s prime rate, (ii) the federal funds rate plus a margin equal to 0.50% and (iii) the Eurodollar rate for a one month interest period plus a margin equal to 1.00%. In addition, we incurred $1.0 million of debt issuance costs that were directly attributable to the issuance of this revolving credit facility which will be amortized to interest expense over the three-year term of this credit facility. As of September 30, 2015, the unamortized debt issuance costs of $0.3 million were included within other long-term assets in our Condensed Consolidated Balance Sheets. We are also required to pay quarterly facility fees of 0.45% per annum on the average daily unused portion of the revolving credit facility.

Credit Facility

In September 2013, we entered into a credit agreement with Royal Bank of Canada, JPMorgan Chase Bank, N.A. and Bank of America, N.A. as lenders. The credit agreement provides a three-year, $35.0 million, revolving credit facility, which includes a maximum $10.0 million letter of credit facility. As of September 30, 2015 and December 31, 2014, we have no outstanding borrowings under this credit facility.

Our obligations under the credit agreement are secured by a security interest on substantially all of our assets, including our intellectual property. The credit agreement contains customary financial and non-financial covenants, and are described in Note 4, Credit Facility of the Notes to Consolidated Financial Statements of our Annual Report on Form 10-K for the year ended December 31, 2014 filed with the SEC on March 11, 2015. We were in compliance with all financial and nonfinancial covenants under the revolving credit facility as of September 30, 2015.

At our option, the revolving credit facility bears interest at a rate per annum based on either (i) an alternate base rate plus a margin ranging from 1.75% to 2.50% depending on our total leverage ratio, or (ii) the London interbank offered rate, or LIBOR, based on one, two, three or six month interest periods plus a margin ranging from 2.75% to 3.50% depending on our total leverage ratio. The alternate base rate is equal to the greatest of (i) the Royal Bank of Canada’s prime rate, (ii) the federal funds rate plus a margin equal to 0.50% and (iii) the Eurodollar rate for a one month interest period plus a margin equal to 1.00%.

In addition, we incurred $1.0 million of debt issuance costs that were directly attributable to the issuance of this revolving credit facility which will be amortized to interest expense over the three-year term of this credit facility. As of September 30, 2015, the unamortized debt issuance costs of $0.3 million were included within other long-term assets in our Condensed Consolidated Balance Sheets. We are also required to pay quarterly facility fees of 0.45% per annum on the average daily unused portion of the revolving credit facility.