. the fifth amended and restated credit agreement adjusted the terms and conditions of the existing credit agreement , including the following changes : 2022 the aggregate commitment for the revolving credit loan facility was increased to $ 800 million ; 2022 the final maturity date of the revolving credit loan facility was extended to january 29 , 2015 ; 2022 changes to the facility fee applicable to the revolving credit loan facility ; 2022 the interest rate margin applicable to the revolving credit loan