Stockholder's Equity (Tables)

3 Months Ended

Mar. 31, 2014

Equity [Abstract]

Nonvested Stock Activity

The following table represents the nonvested stock activity for the three months ended March 31, 2014:

	Number of Shares			Weighted average grant date fair value
Nonvested shares outstanding as of December 31, 2013		506,467		$	22.08
Granted		195,945		$	23.56
Vested		(140,139	)	$	21.57
Nonvested shares outstanding as of March 31, 2014		562,273		$	22.31

Shares of Common Stock Issued During 2014 Under Employee Stock Purchase Plan

The table below details the shares of common stock issued during 2014:

	Number of Shares		Per share price
Shares available as of December 31, 2013		272,788
Shares issued during three months ended March 31, 2014		8,025	$	22.84
Shares available as of March 31, 2014		264,763