| Net product sales | 272,311a | 255,887a | 242,901a |
| Net service sales | 365,648a | 318,898a | 271,082a |
| Total net sales | 637,959a | 574,785a | 513,983a |
| Operating expenses | — | — | — |
| Cost of sales | -326,288a | -304,739a | -288,831a |
| Fulfillment | -98,505a | -90,619a | -84,299a |
| Technology and infrastructure | -88,544a | -85,622a | -73,213a |
| Sales and marketing | -43,907a | -44,370a | -42,238a |
| General and administrative | -11,359a | -11,816a | -11,891a |
| Other operating expense (income), net | 763a | 767a | 1,263a |
| Total operating expenses | -569,366a | -537,933a | -501,735a |
| Operating income | 68,593a | 36,852a | 12,248a |
| Interest income | 4,677a | 2,949a | 989a |
| Interest expense | -2,406a | -3,182a | -2,367a |
| Other income (expense), net | -2,250a | 938a | -16,806a |
| Total non-operating income (expense) | 21a | 705a | -18,184a |
| Income (loss) before income taxes | 68,614a | 37,557a | -5,936a |
| Benefit (provision) for income taxes | -9,265a | -7,120a | 3,217a |
| Equity-method investment activity, net of tax | -101a | -12a | -3a |
| Net income (loss) | 59,248a | 30,425a | -2,722a |