Basic and Diluted Net Income per Common Share (Schedule of Earnings Per Share Reconciliation) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]
Net (loss) income	$ 2,432	$ 1,492	$ (1,303)	$ 49,611
Weighted-average shares outstanding - basic (in shares)	71,653,141	47,212,330	59,128,342	47,175,243
Dilutive securities (in shares)	79,255	356,240	47,543	277,852
Weighted-average shares outstanding - diluted (in shares)	71,732,396	47,568,570	59,175,885	47,453,095
Common stock equivalent shares excluded due to antidilutive effect (in shares)	0	32,399	589,198	32,399
Basic and diluted:
Net income (loss) per common share (in dollars per share)	$ 0.03	$ 0.03	$ (0.02)	$ 1.05
Net income (loss) per common share (diluted) (in dollars per share)	$ 0.03	$ 0.03	$ (0.02)	$ 1.05