Long-Term Debt (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013
Long-Term Debt [Abstract]
Long-term borrowings repaid	$ 165,000,000
Prepayment penalties incurred	17,100,000
Prepayment penalties recognized as expense	4,554,000	4,554,000	0
Long-term debt strategy	45,000,000	45,000,000
Prepayment penalties recognized as expense in third quarter	$ 13,000,000