Subsequent Event (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011	Jan. 01, 2011
Subsequent Event (Textual) [Abstract]
Cash dividend declared	$ 0.19	$ 0.16	$ 0.57	$ 0.48
Dividend payable date			Feb. 29, 2012
Dividend record date			Feb. 08, 2012