Share Repurchase Program - (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Share Repurchase Program [Abstract]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	3,000
Stock Repurchased and Retired During Period, Shares	370	570
Shares available for future repurchase	956
Stock Repurchased During Period, Value	$ 4,700	$ 6,786
StockRepurchasedAndRetired-AveragePricePerShare	$ 12.70	$ 11.91