Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Summary of Changes in 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