Shareholders' Equity

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Shareholders' Equity

8. Shareholders’ Equity

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

	Common Stock		Additional Paid-In Capital			Retained Earnings			Treasury Stock			Deferred Compensation Trust			Deferred Compensation Liability		Total
Balance, December 31, 2016	$	206	$	1,515,828		$	5,695,376		$	(5,906,969	)	$	(17,375	)	$	17,375	$	1,304,441
Cumulative-effect adjustment from adoption of ASU 2016-09, net of tax		—		1,566			(957	)		—			—			—		609
Net income		—		—			102,923			—			—			—		102,923
Deferred compensation activity		—		—			—			—			(8	)		8		—
Purchase of common stock for treasury		—		—			—			(85,547	)		—			—		(85,547	)
Equity-based compensation		—		10,589			—			—			—			—		10,589
Proceeds from stock options exercised		—		75,265			—			—			—			—		75,265
Treasury stock issued upon option exercise and restricted share vesting		—		(32,978	)		—			32,978			—			—		—
Balance, March 31, 2017	$	206	$	1,570,270		$	5,797,342		$	(5,959,538	)	$	(17,383	)	$	17,383	$	1,408,280

The Company repurchased 51 shares of its common stock during the three months ended March 31, 2017. The Company settles stock option exercises and vesting of restricted share units by issuing shares of treasury stock.  Approximately 94 shares were issued from the treasury account during the three months ended March 31, 2017 in settlement of stock 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.