Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

The following table summarizes the activity for all stock options under all of the Company’s equity incentive plans for the six months ended June 30, 2016 (shares in thousands):

				Weighted		Weighted
				Average		Average
	Options			Exercise Price		Remaining
	Outstanding			Outstanding		Contractual Life
Outstanding at January 1, 2016		12,795		$	5.89		7.82
Granted		2,974			5.70
Exercised		(912	)		2.81
Cancelled / forfeited		(866	)		8.38
Outstanding at June 30, 2016		13,991		$	5.90		7.87

Options vested and exercisable at June 30, 2016		6,957		$	4.71		6.77

Summary of Activity for All Restricted Stock Unites ("RSUs")

The following table summarizes the activity for all restricted stock units (“RSUs”) under all of the Company’s equity incentive plans for the six months ended June 30, 2016 (shares in thousands):

				Weighted
				Average Grant
				Date Fair
	Shares			Value
Unvested balance at January 1, 2016		1,506		$	10.44
Granted		2,156			6.07
Issued		(149	)		9.38
Cancelled / forfeited		(128	)		6.74
Unvested balance at June 30, 2016		3,385		$	7.70

Summary of Stock-Based Compensation Expense

The Company recognized stock-based compensation expense, including ESPP expenses, in the consolidated statements of operations as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Cost of operating leases and incentives	$	632	$	248	$	839	$	297
Cost of solar energy systems and product sales		117		35		198		112
Sales and marketing		1,890		1,209		3,508		1,636
Research and development		149		64		246		126
General and administration		2,050		1,645		3,856		4,250
Total	$	4,838	$	3,201	$	8,647	$	6,421