Shareholders' Equity

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Shareholders' Equity

Shareholders’ Equity

The following table details activity in our common stock:

	Six Months Ended June 30,
	2018			2017
	Shares	Amount		Shares		Amount
Purchases of treasury shares	—	$	—	(42	)	$	(6,171	)
Stock option exercises	722	44,317		534		23,360
Employee stock plan purchases	23	$	3,760	27		$	3,427

As of June 30, 2018, we had authorization from our board of directors to repurchase up to 2.0 million additional shares of Tyler common stock.