Common Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended
	Apr. 16, 2015	Jan. 03, 2013	Jul. 21, 2011	May. 30, 2015	May. 31, 2014	Mar. 26, 2015	Feb. 28, 2015
Class of Stock [Line Items]
Treasury stock held				14,884,449
Treasury stock, average price per share				$ 20.34
Treasury stock, value				$ 302,719	$ 225,545		$ 271,873
Dividends declared per share	$ 0.09			$ 0.09	$ 0.08
Common stock dividend declared				$ 4,200
Common stock dividends payment				$ 4,200
Dividend payable , date of payment	Jun. 15, 2015
Dividend payable , date of record	May 29, 2015
Jul. 21, 2011
Class of Stock [Line Items]
Stock repurchase program, shares authorized to be repurchased		5,000,000
Stock repurchase program, expiration date		Dec. 31, 2017	Dec. 31, 2014
Treasury stock purchased (in shares)				1,250,000
Stock repurchase program, average price per share				$ 25.04
Treasury stock purchased				$ 31,300
Stock repurchase program, shares available to repurchase				4,954,503
Maximum | Jul. 21, 2011
Class of Stock [Line Items]
Stock repurchase program, shares authorized to be repurchased			5,000,000
Share Repurchase Program 2015
Class of Stock [Line Items]
Stock repurchase program, shares authorized to be repurchased						5,000,000