Shareholders' Equity

6 Months Ended

Jun. 30, 2012

Shareholders' Equity [Abstract]

Stockholders' Equity

8. Shareholders’ Equity

A summary of changes in shareholders’ equity is presented below:

			Additional								Deferred			Deferred
	Common		Paid-In-			Retained		Treasury			Comp.			Comp.
	Stock		Capital			Earnings		Stock			Trust			Liability			Total
Balance, December 31, 2011	$	206	$	1,072,779		$	4,158,492	$	(3,856,678	)	$	(25,581	)	$	25,581		$	1,374,799
Net income		—		—			66,961		—			—			—			66,961
Deferred compensation activity		—		—			—		—			250			(250	)		—
Equity-based compensation		—		33,173			—		—			—			—			33,173
Tax benefit from equity benefit plan activity		—		4,709			—		—			—			—			4,709
Proceeds from stock options exercised		—		42,182			—		—			—			—			42,182
Treasury stock issued upon option exercise and restricted share vesting		—		(39,725	)		—		39,725			—			—			—
Balance, June 30, 2012	$	206	$	1,113,118		$	4,225,453	$	(3,816,953	)	$	(25,331	)	$	25,331		$	1,521,824

The Company did not repurchase any shares of its common stock during the six months ended June 30, 2012. The Company settles share issuances under equity benefit plans by issuing shares of treasury stock. Approximately 160,000 shares were issued from the treasury account during the six months ended June 30, 2012 for option exercises and vesting of restricted share units. Shares are relieved from the treasury account based on the weighted average cost basis of treasury shares acquired.