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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2021
Summary of Significant Accounting Policies [Abstract] |
Inventories | Inventories consist of the following (U.S. dollars in thousands):
|  | December 31, |
|  | 2021 |  |  | 2020 |
Raw materials |  | $ | 179,891 |  |  | $ | 118,877 |
Finished goods |  |  | 220,040 |  |  |  | 195,489 |
Total inventory, net |  | $ | 399,931 |  |  | $ | 314,366 |
Inventory Reserves | Reserves of inventories consist of the following (U.S. dollars in thousands):
|  | 2021 |  |  | 2020 |  |  | 2019 |
Beginning balance |  | $ | 14,249 |  |  | $ | 12,295 |  |  | $ | 14,149 |
Additions |  |  | 31,300 |  |  |  | 15,952 |  |  |  | 14,931 |
Write-offs |  |  | (26,906 | ) |  |  | (13,998 | ) |  |  | (16,785 | )
Ending balance |  | $ | 18,643 |  |  | $ | 14,249 |  |  | $ | 12,295 |
Prepaid Expenses and Other | Prepaid expenses and other consist of the following (U.S. dollars in thousands):
|  | December 31, |
|  | 2021 |  |  | 2020 |
Deferred charges |  | $ | 14,266 |  |  | $ | 10,540 |
Prepaid income tax |  |  | 2,784 |  |  |  | — |
Prepaid inventory and import costs |  |  | 6,087 |  |  |  | 4,123 |
Prepaid rent, insurance and other occupancy costs |  |  | 3,690 |  |  |  | 9,182 |
Prepaid promotion and event cost |  |  | 4,382 |  |  |  | 10,002 |
Prepaid other taxes |  |  | 9,333 |  |  |  | 10,565 |
Prepaid software license |  |  | 17,041 |  |  |  | 9,107 |
Deposits |  |  | 1,158 |  |  |  | 33,312 |
Other |  |  | 18,165 |  |  |  | 14,732 |
Total prepaid expense and other |  | $ | 76,906 |  |  | $ | 101,563 |
Estimated Useful Lives | Property and equipment are stated at cost less accumulated depreciation. Depreciation is recorded using the straight-line method over the following estimated useful lives:
Buildings | 39 years
Furniture and fixtures | 5 - 7 years
Computers and equipment | 3 - 5 years
Leasehold improvements | Shorter of estimated useful life or lease term
Scanners | 3 years
Vehicles | 3 - 5 years
Other Assets | Other assets consist of the following (U.S. dollars in thousands):
|  | December 31, |
|  | 2021 |  |  | 2020 |
Deferred taxes |  | $ | 26,483 |  |  | $ | 35,414 |
Deposits for noncancelable operating leases |  |  | 17,121 |  |  |  | 20,783 |
Cash surrender value for life insurance policies |  |  | 49,851 |  |  |  | 45,453 |
Right-of-use assets, Financing, net |  |  | 6,477 |  |  |  | 9,385 |
Long-term investments |  |  | 35,868 |  |  |  | 11,344 |
Other |  |  | 39,660 |  |  |  | 15,703 |
Total other assets |  | $ | 175,460 |  |  | $ | 138,082 |
Accrued Expenses | Accrued expenses consist of the following (U.S. dollars in thousands):
|  | December 31, |
|  | 2021 |  |  | 2020 |
Accrued sales force commissions and other payments |  | $ | 139,793 |  |  | $ | 149,481 |
Accrued income taxes |  |  | — |  |  |  | 13,921 |
Accrued other taxes |  |  | 31,135 |  |  |  | 45,018 |
Accrued payroll and other employee expenses |  |  | 53,641 |  |  |  | 65,272 |
Accrued payable to vendors |  |  | 45,347 |  |  |  | 47,201 |
Short-term operating lease liability |  |  | 33,427 |  |  |  | 44,981 |
Accrued royalties |  |  | 1,095 |  |  |  | 1,008 |
Sales return reserve |  |  | 3,513 |  |  |  | 3,978 |
Deferred revenue |  |  | 33,139 |  |  |  | 35,054 |
Other |  |  | 31,111 |  |  |  | 40,768 |
Total accrued expenses |  | $ | 372,201 |  |  | $ | 446,682 |
Other Liabilities | Other liabilities consist of the following (U.S. dollars in thousands):
|  | December 31, |
|  | 2021 |  |  | 2020 |
Deferred tax liabilities |  | $ | 2,385 |  |  | $ | 626 |
Reserve for other tax liabilities |  |  | 21,774 |  |  |  | 22,731 |
Liability for deferred compensation plan |  |  | 54,213 |  |  |  | 47,543 |
Contingent consideration |  |  | 10,341 |  |  |  | 3,125 |
Finance lease liabilities |  |  | 5,318 |  |  |  | 7,728 |
Asset retirement obligation |  |  | 5,408 |  |  |  | 6,717 |
Other |  |  | 7,035 |  |  |  | 13,811 |
Total other liabilities |  | $ | 106,474 |  |  | $ | 102,281 |
Unrecognized Tax Benefits | A reconciliation of the beginning and ending amount of unrecognized tax benefits included in other liabilities is as follows (U.S. dollars in thousands):
|  | 2021 |  |  | 2020 |  |  | 2019 |
Gross balance at January 1 |  | $ | 17,620 |  |  | $ | 13,507 |  |  | $ | 11,456 |
Increases related to prior year tax positions |  |  | 4,146 |  |  |  | 2,958 |  |  |  | 775 |
Increases related to current year tax positions |  |  | 1,794 |  |  |  | 3,302 |  |  |  | 2,273 |
Settlements |  |  | (5,494 | ) |  |  | (1,091 | ) |  |  | — |
Decreases due to lapse of statutes of limitations |  |  | (2,409 | ) |  |  | (1,377 | ) |  |  | (1,051 | )
Currency adjustments |  |  | (567 | ) |  |  | 321 |  |  |  | 54 |
Gross balance at December 31 |  | $ | 15,090 |  |  | $ | 17,620 |  |  | $ | 13,507 |

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