XML 31 R21.htm IDEA: XBRL DOCUMENT v3.10.0.1

Share based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Fair Value of Options

The fair value of the stock options granted is estimated on the date of grant using a Black-Scholes option pricing model with the following weighted-average assumptions:

	Three Months Ended June 30,								Six Months Ended June 30,
	2018				2017				2018				2017
Expected stock price volatility	81.1		%		82.7		%		81.2		%		83.2		%
Risk free interest rate	2.8		%		1.9		%		2.4		%		2.0		%
Expected life of options (years)	5.62				6.25				5.62				6.25
Expected annual dividend per share	$	—			$	—			$	—			$	—

Schedule of Stock Options Activity

A summary of the Company’s stock options for the six months ended June 30, 2018 were as follows:

	Number of Shares			Weighted Average Exercise Price				Weighted Average Remaining Contractual Life		Aggregate Intrinsic Value
	(in thousands)									(in millions)
Options outstanding, December 31, 2017	15,181			$	7.48
Granted	1,910			$	15.49
Exercised	(1,102	)		$	6.87
Forfeited	(113	)		$	9.75
Expired	(7	)		10.45
Options outstanding, June 30, 2018	15,869			$	8.47			7.2 years		$	114.0
Vested and unvested expected to vest, June 30, 2018	15,160			$	8.32			7.1 years		$	109.6
Exercisable at June 30, 2018	8,916			$	7.08			6.1 years		$	76.4

Schedule of Non-Vested RSU Activity under the Plan

A summary of non-vested RSU activity under the Plan for the six months ended June 30, 2018 is as follows:

	Number of Shares			Weighted Average Grant Date Fair Value				Weighted Average Remaining Years		Aggregate Intrinsic Value
	(in thousands)									(in millions)
Non-vested units as of December 31, 2017	2,575			$	5.85
Granted	1,522			$	16.77
Vested	(511	)		$	5.82
Forfeited	(30	)		$	7.96
Non-vested units as of June 30, 2018	3,556			$	10.39			2.9 years		$	55.5

Schedule of Equity Compensation Expenses

The following table summarizes information related to compensation expense recognized in the statements of operations related to the equity awards:

		Three Months Ended June 30,								Six Months Ended June 30,
(in thousands)		2018				2017				2018				2017
Equity compensation expense recognized in:
Research and development expense		$	2,641			$	2,313			$	5,698			$	5,066
Selling, general and administrative expense		3,700				3,224				8,121				6,501
Total equity compensation expense		$	6,341			$	5,537			$	13,819			$	11,567

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901

+ Details

Name:	us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration