Subsequent Events (Details) - $ / shares						3 Months Ended		6 Months Ended
	Jul. 02, 2015	Apr. 02, 2015	Jan. 02, 2015	Oct. 02, 2014	Jul. 02, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Subsequent Event [Line Items]
Dividends paid per common share						$ 0.225	$ 0.167	$ 0.45	$ 0.333
Common shares
Subsequent Event [Line Items]
Dividends paid per common share		$ 0.225	$ 0.225	$ 0.225	$ 0.225
Common shares | Subsequent event
Subsequent Event [Line Items]
Dividends paid per common share	$ 0.26