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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Schedule of Useful Lives of Property Plant and Equipment |
|  | Years
Equipment and furniture |  | 5
Computers and software |  | 2 - 3
Automobiles |  | 5
Leasehold improvements |  | Lesser of the lease term or estimated useful life
Schedule of Changes in AOCI, Including the Amounts Reclassified to Income |
|  | Foreign currency |
|  | translation and |
|  | unrealized gains |
|  | (losses), net |
|  | of tax |
|  | (in thousands) |
Balance at December 31, 2018 |  | $ | 61,572 |
Unrecognized gain on foreign currency translation |  |  | 529 |
Balance at December 31, 2019 |  | $ | 62,101 |
Unrecognized gain on foreign currency translation |  |  | 1,560 |
Balance at December 31, 2020 |  | $ | 63,661 |
Summary of the Total Potential Ordinary Shares that were Excluded from the Diluted Per Share Calculation |
|  | Years ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (in thousands) |
Anti-dilutive stock options and awards/units outstanding |  |  | 1,478 |  |  |  | 1,335 |  |  |  | — |
Total(1) |  |  | 1,478 |  |  |  | 1,335 |  |  |  | — |
(1) | Calculated using the treasury stock method, which assumes proceeds are used to reduce the dilutive effect of outstanding stock awards. Assumed proceeds include the unrecognized deferred compensation of share awards, and assumed tax proceeds from excess stock-based compensation deductions.
Schedule of Diluted Earnings Per Share | After the dilution, the diluted earnings per share during the year ended December 31, 2018 was as follows.
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (in thousands, except per |
|  |  |  |  |  | shares amounts) |  |  |  |  |
Net Income (loss) |  | $ | (23,676 | ) |  | $ | (3,913 | ) |  | $ | 4,820 |
Weighted average shares outstanding—Diluted |  |  | 35,881 |  |  |  | 35,556 |  |  |  | 36,319 |
Net Income (loss) per shares —Diluted |  | $ | (0.66 | ) |  | $ | (0.11 | ) |  | $ | 0.13 |
Summary of Accounts Receivable, Net | Accounts receivable, net, as of December 31, 2020 and 2019 consisted of the following:
|  | Years Ended |
|  | December 31, |
|  | 2020 |  |  | 2019 |
|  | (in thousands) |
Accounts receivable ,net |  | $ | 49,623 |  |  | $ | 77,831 |
Account receivable |  |  | 65,605 |  |  |  | 84,337 |
Less: Allowance for credit losses |  | $ | (15,982 | ) |  | $ | (6,506 | )
Summary of Allowance for Credit Losses | The movement of allowance for credit losses for the years ended December 31, 2020, 2019 and 2018 was as follows (in thousands)
|  |  |  |  |  | Charged |  |  |  |  |  |  |  |  |  |  |  |
|  | Balance at |  |  | (credited) to |  |  |  |  |  |  |  |  |  | Balance at
|  | beginning of |  |  | costs and |  |  | Exchange |  |  | (Deductions) |  |  | end of
Description |  | the period |  |  | expenses |  |  | difference |  |  | Adjustments |  |  | the period
Year ended December 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for credit losses |  | $ | 6,506 |  |  | $ | 9,441 |  |  | $ | 35 |  |  | $ | — |  |  | $ | 15,982
Year ended December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for credit losses |  | $ | 2,124 |  |  | $ | 4,396 |  |  | $ | (14 | ) |  | $ | — |  |  | $ | 6,506
Year ended December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for credit losses |  | $ | 2,437 |  |  | $ | 812 |  |  | $ | (280 | ) |  | $ | (845 | ) |  | $ | 2,124

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