STOCKHOLDERS' EQUITY (Div and Treas) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
	Apr. 26, 2016	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Oct. 31, 2015
Dividends on Common Stock
Dividends declared (in dollars per share)		$ 0.08	$ 0.06
Dividend Amount		$ 2,088	$ 1,584
Treasury Stock
Aggregate cost of shares repurchased during the period		2,602	$ 2,459
Stock Repurchase Program
Treasury Stock
Amount of stock repurchases authorized						$ 50,000
Amount available for repurchase		44,600			$ 47,200
Number of shares repurchased during the period				133,959
Aggregate cost of shares repurchased during the period		$ 2,600
Subsequent Event
Dividends on Common Stock
Dividends declared (in dollars per share)	$ 0.08