Stock Repurchase (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	7 Months Ended	1 Months Ended
	Jun. 30, 2013	Dec. 29, 2013	Jan. 31, 2014 Subsequent event
Stock Repurchase
Maximum repurchase amount under stock repurchase program	$ 100
Commitment of authorized repurchase amount under the Stock Repurchase Program			30
Shares repurchased through open market purchases		855,200
Average price of shares repurchased (in dollars per share)		$ 23.39
Cost of shares repurchased		$ 20.0