Shareholders' Equity - Narrative (Details) - USD ($)			1 Months Ended	6 Months Ended
	Jul. 29, 2015	May 01, 2013	Jul. 26, 2016	Jul. 01, 2016	Jun. 26, 2015	Jan. 01, 2016
Class of Stock [Line Items]
Preferred shares, shares authorized (shares)				50,000,000		50,000,000
Preferred shares, par value (usd per share)				$ 0.01		$ 0.01
Preferred shares, issued (shares)				0		0
Preferred shares, outstanding (shares)				0		0
Ordinary shares, authorized (shares)				200,000,000		200,000,000
Ordinary shares, par value (usd per share)				$ 0.01		$ 0.01
Ordinary shares, issued (shares)				51,233,897		52,542,965
Ordinary shares, outstanding (shares)				51,233,897		52,542,965
Stock Repurchase Program:
Duration of share repurchase program	3 years	3 years
Stock repurchase program, ordinary shares authorized	$ 300,000,000	$ 300,000,000
Stock repurchase program, value of ordinary shares repurchased and retired				$ 358,700,000
Stock repurchase program, ordinary shares repurchased and retired (shares)				10,742,746
Stock repurchase program, maximum remaining amount				$ 241,300,000
Payments of dividends, common stock				$ 12,700,000	$ 13,100,000
Subsequent Event [Member]
Stock Repurchase Program:
Stock repurchased during period (shares)			0