Subsequent Events (Details)	9 Months Ended
	Sep. 30, 2015 item shares	Nov. 03, 2015 shares
Subsequent Event [Line Items]
Number of types of subsequent events | item	2
Number of shares authorized to be repurchased	2,100,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Number of shares authorized to be repurchased		5,000,000