.25% ( 0.25 % ) to 0.75% ( 0.75 % ) ) . the credit facility also carries a commitment fee equal to the unused borrowings multiplied by an applicable margin ( varying from 0.25% ( 0.25 % ) to 0.35% ( 0.35 % ) ) . the applicable margins are calculated quarterly and vary based on the company 2019s leverage ratio as set forth in the credit agreement . upon entering into the credit facility in march 2011 , the company terminated its prior $ 200.0 million revolving credit facility