v3.7.0.1

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Option Activity

The following table summarizes the activity for all stock options under the Company’s equity incentive plans for the years ended December 31, 2016 and 2015 (shares in thousands):

						Weighted				Weighted
						Average				Average				Aggregate
		Options				Exercise Price				Remaining				Intrinsic
		Outstanding				Outstanding				Contractual Life				Value
Outstanding at December 31, 2014			11,408			$	4.42				8.20
Granted			3,806				9.50
Exercised			(1,210	)			2.96
Cancelled / forfeited			(1,209	)			6.27
Outstanding at December 31, 2015			12,795				5.89				7.82			$	75,797
Granted			3,674				5.73
Exercised			(1,852	)			2.94
Cancelled / forfeited			(1,720	)			8.37
Outstanding at December 31, 2016			12,897			$	5.94				7.49			$	9,625
Options vested and exercisable at    December 31, 2016			6,763			$	5.19				6.40			$	8,943
Options vested and expected to    vest at December 31, 2016			10,886			$	5.80				7.25			$	9,435

Estimated Fair Value of Stock Options

The Company estimated the fair value of stock options with the following assumptions:

		Year Ended December 31,
		2016				2015				2014
Risk-free interest rate		1.18% - 2.23%				1.55% - 1.95%				1.68% - 2.01%
Volatility		36.00% - 49.64%				36.30% - 39.63%				37.41% - 46.68%
Expected term (in years)		5.00 - 6.26				5.50 - 6.23				5.34 - 6.08
Expected dividend yield			0.00	%			0.00	%			0.00	%

Summary of Activity for All RSUs

The following table summarizes the activity for all RSUs under all of the Company’s equity incentive plans for the years ended December 31, 2016 and 2015 (shares in thousands):

						Weighted
						Average Grant
						Date Fair
		Shares				Value
Unvested balance at December 31, 2014			947			$	9.40
Granted			808				11.13
Issued			(182	)			9.58
Cancelled / forfeited			(67	)			11.37
Unvested balance at December 31, 2015			1,506				10.44
Granted			3,363				5.82
Issued			(422	)			9.55
Cancelled / forfeited			(341	)			6.80
Unvested balance at December 31, 2016			4,106			$	6.87

Summary of Stock-Based Compensation Expense

The Company recognized stock-based compensation expense, including the compensation expense resulting from the sales of common stock by employees and former employees in 2015 and 2014 to existing investors and ESPP expenses, in the consolidated statements of operations as follows (in thousands):

		Year Ended December 31,
		2016				2015				2014
Cost of operating leases and incentives		$	2,039			$	1,649			$	155
Cost of solar energy systems and product sales			409				236				682
Sales and marketing			7,831				5,242				897
Research and development			515				205				270
General and administration			7,929				8,491				7,214
Total		$	18,723			$	15,823			$	9,218

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- References

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the number and weighted-average grant date fair value for unvested performance shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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