Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2016

A summary of the numerator and denominators used in the computation of earnings per share follows:


	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Numerator:
Net income (loss) attributable to common stockholders	$	5,195		$	1,025		$	(2,413	)	$	(8,247	)

Denominators:
Number of shares outstanding, end of period:
Class A common stock		40,500			39,927			40,500			39,927
Class B common stock		988			988			988			988
Unvested restricted stock		(115	)		(156	)		(115	)		(156	)
Effect of weighted average shares outstanding		(241	)		(312	)		(309	)		(327	)

Basic weighted average common shares outstanding		41,132			40,447			41,064			40,432

Impact of potentially dilutive securities:
Dilutive effect of options and restricted / performance stock units		466			399			—			—

Diluted weighted average common shares outstanding		41,598			40,846			41,064			40,432

Antidilutive potentially issuable shares		473			793			2,211			2,271