Basic and Diluted Net IncomePer Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

A reconciliation of the numerator and the denominator used to calculate basic and diluted loss per share is as follows (in thousands, except per share amounts):

	For the Years Ended December 31,
	2015			2014			2013
Numerator—Basic
Net loss, basic	$	(14,678	)	$	(27,581	)	$	(49,404	)
Numerator—Diluted
Net loss, basic	$	(14,678	)	$	(27,581	)	$	(49,404	)
Interest on convertible senior notes, net of tax benefit (A)	—			—			—
Net loss, diluted	$	(14,678	)	$	(27,581	)	$	(49,404	)
Denominator—Basic
Weighted average shares used to calculate net loss per share, basic	36,789			34,699			28,805
Denominator—Diluted
Weighted average shares used to calculate net loss per share, basic	36,789			34,699			28,805
Effect of convertible notes (A)	—			—			—
Effect of dilutive restricted stock (B)	—			—			—
Effect of dilutive stock options (B)	—			—			—
Weighted average shares used to calculate net loss per share, diluted	36,789			34,699			28,805
Net loss per share:
Basic	$	(0.40	)	$	(0.79	)	$	(1.72	)
Diluted	$	(0.40	)	$	(0.79	)	$	(1.72	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following as-if converted shares associated with the Company’s 2015 convertible senior notes were excluded from the calculation as their effect would be anti-dilutive (in thousands):

	For the Years Ended December 31,
	2015	2014	2013
2015 convertible senior notes	—	2,110	2,110

(B) The following shares, by equity award type, were excluded from the calculation, as their effect would have been anti-dilutive (in thousands):

	For the Years Ended December 31,
	2015	2014	2013
Stock options	2,966	2,841	3,465
Restricted stock units	151	128	335
Performance based restricted stock units (C)	1,625	240	193
Total equity award shares excluded	4,742	3,209	3,993