XML 14 R14.htm IDEA: XBRL DOCUMENT
v3.19.3

Share-based compensation | 9 Months Ended
--- | ---
Sep. 30, 2019
Share-based compensation |
Share-based compensation | Note 8 — Share-based compensation ​ Restricted share awards are issued to employees that are subject to specified restrictions and a risk of forfeiture. The restrictions typically lapse over one to five years and may entitle holders to dividends and voting rights. Other types of share-based compensation include performance share awards, performance share units, and restricted share units (collectively with restricted share awards, “restricted shares”), as well as options to purchase common stock. ​ Share-based compensation expense was recognized in the following line items in the Consolidated Statements of Operations for the three and nine months ended September 30, 2019 and 2018: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended September 30, | ​ | Nine months ended September 30, | ​
​ |  | 2019 |  | 2018 |  | 2019 |  | 2018 |
​ | ​ | (in thousands) | ​
Cost of sales |  | $ | 383 |  | $ | 513 |  | $ | 1,448 |  | $ | 1,603 |
Research and development | ​ | ​ | 756 | ​ | ​ | 709 | ​ | ​ | 2,531 | ​ | ​ | 2,728 | ​
Selling, general, and administrative | ​ | ​ | 2,644 | ​ | ​ | 1,890 | ​ | ​ | 7,549 | ​ | ​ | 7,393 | ​
Restructuring | ​ | ​ | — | ​ | ​ | 167 | ​ | ​ | — | ​ | ​ | 996 | ​
Total | ​ | $ | 3,783 | ​ | $ | 3,279 | ​ | $ | 11,528 | ​ | $ | 12,720 | ​
​ For the nine months ended September 30, 2019, equity activity related to stock options was as follows: ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted
​ | ​ | Number of | ​ | Average
​ |  | Shares |  | Exercise Price
​ | ​ | (in thousands) | ​ | ​ | ​
Balance - December 31, 2018 | ​ | 1,222 | ​ | $ | 34.80
Expired or forfeited | ​ | (69) | ​ | ​ | 33.62
Balance - September 30, 2019 | ​ | 1,153 | ​ | ​ | 34.87
​ For the nine months ended September 30, 2019, equity activity related to non-vested restricted shares and performance shares was as follows: ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted
​ | ​ | ​ | ​ | Average
​ | ​ | Number of | ​ | Grant Date
​ | ​ | Shares | ​ | Fair Value
​ | ​ | (in thousands) | ​ | ​ | ​
Balance - December 31, 2018 | ​ | 2,218 | ​ | $ | 20.74
Granted | ​ | 1,048 | ​ | ​ | 11.41
Performance award adjustments | ​ | (25) | ​ | ​ | 28.91
Vested | ​ | (721) | ​ | ​ | 22.29
Forfeited | ​ | (176) | ​ | ​ | 19.41
Balance - September 30, 2019 | ​ | 2,344 | ​ | ​ | 16.02
​

X
- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration