COMMON AND PREFERRED STOCK - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified							12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011 Stock Incentive Plan 1998	Jan. 01, 2011 Stock Incentive Plan 1998	Dec. 31, 2011 Stock Incentive Plan 1998 Restricted Stock	Dec. 31, 2011 Stock Incentive Plan 1998 Stock Options	Dec. 31, 2011 Stock Incentive Plan 1998 Maximum	Dec. 31, 2011 Stock Incentive Plan 2007	Jan. 01, 2011 Stock Incentive Plan 2007	Dec. 31, 2011 Stock Incentive Plan 2007 Restricted Stock	Dec. 31, 2011 Stock Incentive Plan 2007 Stock Options	Dec. 31, 2011 Stock Incentive Plan 2011 Maximum
Stockholders Equity Note [Line Items]
Common stock, shares authorized	47,500,000	47,500,000
Non-voting Preferred Stock, shares authorized	2,000,000	2,000,000
Common stock, shares outstanding	18,655,910	18,458,011
Stock repurchase program, shares authorized for repurchase	1,800,000
Stock repurchase program, shares repurchased	1,540,183
Stock repurchase program, remaining shares authorized for repurchase	259,817
Treasury stock, shares	4,437,428	4,233,810
Treasury Stock, value	$ 126,682	$ 111,019
Options expiration period							10 years
Share-based awards, aggregate shares issued			3,363,506		928,186	2,435,320		894,518		890,889	3,629
Share-based awards, aggregate shares exercised						1,733,650					708
Share-based awards, shares unvested					132,072					555,288
Share-based awards, shares outstanding			706,670	724,888		706,670		2,597	2,921		2,597
Share-based awards, aggregate shares cancelled					123,514
Share-based awards, maximum shares that can be issued												550,000