Shareholders' Equity - Narrative (Details) - USD ($)		1 Months Ended	6 Months Ended
	Jul. 29, 2015	Aug. 01, 2017	Jun. 30, 2017	Jul. 01, 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)			50,104,086		51,256,906
Ordinary shares, outstanding (shares)			50,104,086		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	$ 169,900,000
Stock repurchase program, ordinary shares repurchased and retired (shares)	4,518,091
Stock repurchase program, maximum remaining amount	$ 130,100,000
Payments of dividends, common stock			$ 15,200,000	$ 12,700,000
Subsequent Event
Stock Repurchase Program:
Stock repurchased during period (shares)		0