Credit Facility	12 Months Ended
Dec. 31, 2014
Credit Facility Disclosure [Abstract]
Debt Disclosure [Text Block]	Credit Facility In July 2012, the Company, through its wholly owned subsidiary PROS, Inc., entered into a $50 million secured Credit Agreement (the "Revolver") with Wells Fargo Bank, N.A. ("Wells Fargo"). In connection with the issuance of the Senior Notes, PROS, Inc. amended the Revolver in December 2014 to, among other things, allow for the Company’s issuance of the Senior Notes, Note Hedge and Warrant. The Revolver is for a five year term, with interest paid at the end of the applicable one month, three month or six month interest period at a rate per annum equal to LIBOR plus an applicable margin of 1.5% to 2.25% or the Federal Funds Rate plus an applicable margin of 1.5% to 2.25%. Borrowings under the Revolver are collateralized by a first priority interest in and lien on all of the Company's material assets. The Revolver contains affirmative and negative covenants, including covenants which restrict the ability of the Company to, among other things, create liens, incur additional indebtedness and engage in certain other transactions, in each case subject to certain exclusions. In addition, the Revolver contains certain financial covenants which become effective in the event the Company's availability under the revolver plus cash and cash equivalents falls below $20 million or upon the occurrence of an event of default. As of December 31, 2014, the Company was in compliance with all financial covenants in the Revolver. As of December 31, 2014 and 2013, $0.1 million and $0.2 million of unamortized debt issuance costs related to the Revolver is included in other long-term assets in the consolidated balance sheets. For both years ended December 31, 2014 and 2013, $0.1 million of debt issuance cost amortization is included in Other Expense, net in the consolidated statements of comprehensive income. As of December 31, 2014, the Company had no outstanding borrowings under the Revolver.

Credit Facility

In July 2012, the Company, through its wholly owned subsidiary PROS, Inc., entered into a $50 million secured Credit Agreement (the "Revolver") with Wells Fargo Bank, N.A. ("Wells Fargo"). In connection with the issuance of the Senior Notes, PROS, Inc. amended the Revolver in December 2014 to, among other things, allow for the Company’s issuance of the Senior Notes, Note Hedge and Warrant.

The Revolver is for a five year term, with interest paid at the end of the applicable one month, three month or six month interest period at a rate per annum equal to LIBOR plus an applicable margin of 1.5% to 2.25% or the Federal Funds Rate plus an applicable margin of 1.5% to 2.25%. Borrowings under the Revolver are collateralized by a first priority interest in and lien on all of the Company's material assets.

The Revolver contains affirmative and negative covenants, including covenants which restrict the ability of the Company to, among other things, create liens, incur additional indebtedness and engage in certain other transactions, in each case subject to certain exclusions. In addition, the Revolver contains certain financial covenants which become effective in the event the Company's availability under the revolver plus cash and cash equivalents falls below $20 million or upon the occurrence of an event of default. As of December 31, 2014, the Company was in compliance with all financial covenants in the Revolver.

As of December 31, 2014 and 2013, $0.1 million and $0.2 million of unamortized debt issuance costs related to the Revolver is included in other long-term assets in the consolidated balance sheets. For both years ended December 31, 2014 and 2013, $0.1 million of debt issuance cost amortization is included in Other Expense, net in the consolidated statements of comprehensive income.

As of December 31, 2014, the Company had no outstanding borrowings under the Revolver.