Subsequent event (Notes)

6 Months Ended

Jun. 30, 2015

Subsequent Event [Line Items]

Subsequent event [Text Block]

Subsequent Event

On July 21, 2015, the Company entered into a $75.0 million term loan agreement with a variable interest rate which matures on July 20, 2016. The agreement contains customary covenants and provisions, including a covenant of the Company not to permit, at any time, the ratio of funded debt to capitalization (on either a consolidated or unconsolidated basis) to be greater than 65 percent. Other covenants include restrictions on the sale of certain assets and the making of certain investments.