Stock Buyback Program (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares shares
Equity [Abstract]
Total shares repurchased (in shares)	3,589,425
Total shares repurchased | $	$ 53.5
Repurchase of common stock value per share (in dollars per share) | $ / shares	$ 14.90
Remaining number of shares available to be repurchased	878,328