XML 38 R27.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Share-based compensation (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Schedule of Share-Based Compensation by Line Item in Condensed Consolidated Statements of Income | The following tables present the detail of share-based compensation by line item in the condensed consolidated statements of income as well as by award type:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
(U.S. Dollars, in thousands) |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Cost of sales |  | $ | 132 |  |  | $ | 137 |  |  | $ | 257 |  |  | $ | 286 |
Sales and marketing |  |  | 473 |  |  |  | 319 |  |  |  | 922 |  |  |  | 679 |
General and administrative |  |  | 4,249 |  |  |  | 2,005 |  |  |  | 7,294 |  |  |  | 4,107 |
Research and development |  |  | 361 |  |  |  | 215 |  |  |  | 658 |  |  |  | 420 |
|  | $ | 5,215 |  |  | $ | 2,676 |  |  | $ | 9,131 |  |  | $ | 5,492 |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
(U.S. Dollars, in thousands) |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Stock options |  | $ | 1,241 |  |  | $ | 523 |  |  | $ | 1,863 |  |  | $ | 1,118 |
Time-based restricted stock awards and units |  |  | 1,789 |  |  |  | 1,239 |  |  |  | 3,236 |  |  |  | 2,531 |
Performance-based restricted stock awards |  |  | 270 |  |  |  | 113 |  |  |  | 759 |  |  |  | 225 |
Performance-based and market-based restricted stock units |  |  | 1,604 |  |  |  | 472 |  |  |  | 2,557 |  |  |  | 938 |
Stock purchase plan |  |  | 311 |  |  |  | 329 |  |  |  | 716 |  |  |  | 680 |
|  | $ | 5,215 |  |  | $ | 2,676 |  |  | $ | 9,131 |  |  | $ | 5,492 |

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