Net Income Or Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Loss per share of common stock:

Computation Of Basic And Diluted Earnings Per Share

	Years ended December 31,
	2015		2014		2013
Numerator (both basic and diluted):
Net income (loss) available to common stockholders	$	(241,745)	$	(8,341)	$	(35,929)
Denominator:
Denominator for basic earnings per share		40,505,429		41,165,940		40,288,218
Denominator for diluted earnings per share		40,505,429		41,165,940		40,288,218
Basic earnings (loss) per common share:	$	(5.97)	$	(0.20)	$	(0.89)
Diluted earnings (loss) per common share:	$	(5.97)	$	(0.20)	$	(0.89)

Schedule of Antidilutive Shares

	Years ended December 31,
	2015		2014		2013
Stock options		26,527		159,888		116,925
Unvested restricted stock		643,351		967,200		548,413
		669,878		1,127,088		665,338