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SHARE-BASED COMPENSATION - Compensation Expense from Share-Based Arrangements (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Recognition of fair value of restricted stock units, stock options, and SARs over vesting period; and issuance of common stock	$ 1,663	$ 744
Contributions of stock to the Company's 401(k) plan	723	1,158
Total share-based compensation expense	$ 2,386	$ 1,902

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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