Weighted Average Shares Outstanding (Tables)

12 Months Ended

Dec. 31, 2014

Weighted Average Number of Shares Outstanding Reconciliation [Abstract]

Schedule of Weighted Average Number of Shares

A reconciliation of the weighted average shares outstanding used in calculating basic and diluted net income (loss) per share in the accompanying consolidated statements of operations is as follows (in thousands):

Years Ended December 31,	2014	2013	2012
Weighted average shares outstanding:
Weighted average common stock outstanding	39,096	38,803	38,689
Less: weighted average unvested restricted stock outstanding	—	—	242
Total basic weighted average shares outstanding	39,096	38,803	38,447
Diluted weighted average shares outstanding:
Weighted average common stock outstanding, basic	39,096	38,803	38,447
Effect of dilutive securities:
Common stock options and restricted stock units1	699	—	629
Total weighted average shares outstanding assuming dilution	39,795	38,803	39,076