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Segment Reporting | 3 Months Ended
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Mar. 31, 2019
Segment Reporting [Abstract] |
Segment Reporting | Segment Reporting. We report our operations in two operating segments: cardiovascular and endoscopy. Our cardiovascular segment consists of cardiology and radiology medical device products which assist in diagnosing and treating coronary artery disease, peripheral vascular disease and other non-vascular diseases and includes embolotherapeutic, cardiac rhythm management ("CRM"), electrophysiology ("EP"), critical care, interventional oncology and spine devices, and our Cianna Medical product line. Our endoscopy segment focuses on the gastroenterology, pulmonary and thoracic surgery specialties, with a portfolio consisting primarily of stents, dilation balloons, certain inflation devices, guide wires, and other disposable products, as well as the products related to our distribution agreement with NinePoint Medical Inc. ("NinePoint Medical"). We evaluate the performance of our operating segments based on net sales and operating income. Financial information relating to our reportable operating segments and reconciliations to the consolidated totals for the three-month periods ended March 31, 2019 and 2018, are as follows (in thousands):
| Three Months Ended March 31,
| 2019 |  | 2018
Net Sales |  |  |  |  |
Cardiovascular | $ | 230,480 |  |  | $ | 195,855 |
Endoscopy | 7,869 |  |  | 7,180 |
Total net sales | $ | 238,349 |  |  | $ | 203,035 |
Operating Income |  |  |
Cardiovascular | 7,619 |  |  | 6,397 |
Endoscopy | 1,904 |  |  | 2,384 |
Total operating income | 9,523 |  |  | 8,781 |
Total other expense - net | (2,677 | ) |  | (2,422 | )
Income tax expense | 651 |  |  | 1,090 |
Net income | $ | 6,195 |  |  | $ | 5,269 |

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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