Subsequent Events (Details) - USD ($) $ in Thousands	2 Months Ended
	Mar. 21, 2016	Jan. 31, 2016
Forty million stock buyback prorgram [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount		$ 40,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 10,700
Subsequent Event [Member]
Equity, Class of Treasury Stock [Line Items]
Subsequent Event, Date	Mar. 21, 2016
Stock Repurchase Program, Authorized Amount	$ 10,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 20,700