Shareholders' Equity - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	1 Months Ended	3 Months Ended		40 Months Ended	1 Months Ended
	Jan. 31, 2014	Mar. 30, 2014	Mar. 31, 2013	Mar. 30, 2014	Nov. 30, 2010 Maximum
Stockholders Equity Note Disclosure [Line Items]
Stock repurchase program, authorized amount					$ 200
Repurchase of stock, shares		0	0	2.6
Repurchase of stock, value				$ 31.2
Common stock average price				$ 11.84
Dividends payable, amount per share	$ 0.06
Dividends payable, date to be paid	Jun. 02, 2014
Dividends payable, record date	May 09, 2014