Subsequent Events Subsequent Events (Details) - USD ($) $ in Thousands	1 Months Ended
	Apr. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Subsequent Event [Line Items]
Long-term Debt, Gross		$ 1,348,430	$ 1,364,008
FNC, Inc. [Member]
Subsequent Event [Line Items]
Business Combination, Consideration Transferred	$ 475,000
Payments to Acquire Businesses, Gross	400,000
Other Payments to Acquire Businesses	75,000
Revolving Line of Credit April 2020 [Member] | Line of Credit [Member]
Subsequent Event [Line Items]
Long-term Debt, Gross		$ 75,000	$ 75,000
Revolving Line of Credit April 2020 [Member] | Line of Credit [Member] | FNC, Inc. [Member]
Subsequent Event [Line Items]
Long-term Debt, Gross	$ 390,000