Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Comprehensive Income (Unaudited)

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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Revenue        
Sales revenue $ 91,987 $ 58,038 $ 165,571 $ 104,004
Rental revenue 5,251 6,083 10,718 12,617
Total revenue 97,238 64,121 176,289 116,621
Cost of revenue        
Cost of sales revenue 44,968 27,993 81,916 49,906
Cost of rental revenue, including depreciation of $1,966 and $2,522 for the three months ended and $4,131 and $5,211 for the six months ended,respectively 3,800 4,561 8,176 9,404
Total cost of revenue 48,768 32,554 90,092 59,310
Gross profit        
Gross profit-sales revenue 47,019 30,045 83,655 54,098
Gross profit-rental revenue 1,451 1,522 2,542 3,213
Total gross profit 48,470 31,567 86,197 57,311
Operating expense        
Research and development 1,775 1,260 3,191 2,569
Sales and marketing 22,999 11,945 41,037 22,474
General and administrative 9,675 9,865 19,248 18,200
Total operating expense 34,449 23,070 63,476 43,243
Income from operations 14,021 8,497 22,721 14,068
Other income (expense)        
Interest income 673 146 1,216 247
Other income (expense) (1,048) 523 (604) 730
Total other income (expense), net (375) 669 612 977
Income before provision (benefit) for income taxes 13,646 9,166 23,333 15,045
Provision (benefit) for income taxes (964) 828 (2,035) 775
Net income 14,610 8,338 25,368 14,270
Other comprehensive income (loss), net of tax        
Change in foreign currency translation adjustment 76 197 184 197
Change in net unrealized gains (losses) on foreign currency hedging 723 (300) 474 (246)
Less: reclassification adjustment for net (gains) losses included in net income (103) 49 69 (8)
Total net change in unrealized gains (losses) on foreign currency hedging 620 (251) 543 (254)
Change in net unrealized gains (losses) on available-for-sale investments 19 (6)   58
Total other comprehensive income (loss), net of tax 715 (60) 727 1
Comprehensive income $ 15,325 $ 8,278 $ 26,095 $ 14,271
Basic net income per share attributable to common stockholders (Note 5) $ 0.69 $ 0.40 $ 1.20 $ 0.69
Diluted net income per share attributable to common stockholders (Note 5) $ 0.65 $ 0.38 $ 1.13 $ 0.66
Weighted-average number of shares used in calculating net income per share attributable to common stockholders:        
Basic common shares 21,172,170 20,622,320 21,099,566 20,556,293
Diluted common shares 22,503,749 21,848,359 22,409,011 21,731,592