Shareholders' Equity - Narrative (Details) - USD ($)		1 Months Ended	9 Months Ended
	Jul. 29, 2015	Oct. 31, 2017	Sep. 29, 2017	Sep. 30, 2016	Dec. 30, 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)			49,736,911		51,256,906
Ordinary shares, outstanding (shares)			49,736,911		51,256,906
Stock Repurchase Program:
Duration of share repurchase program	3 years
Stock repurchase program, ordinary shares authorized	$ 300,000,000
Stock repurchase program, value of ordinary shares repurchased and retired			$ 194,600,000
Stock repurchase program, ordinary shares repurchased and retired (shares)			5,041,915
Stock repurchase program, maximum remaining amount			$ 105,400,000
Payments of dividends, common stock			$ 22,700,000	$ 20,500,000
Subsequent Event
Stock Repurchase Program:
Stock repurchased during period (shares)		0