Schedule of Changes in Allowance for Sales Returns and Doubtful Accounts | Below is a summary of the changes in our allowance for sales returns. | | | | | | | | | | | | | | Years ended December 31, (in thousands) | Balance at beginning of year |
| Provision/adjustment |
| Write-off |
| Balance at end of year |
| 2016 | $ | 4,431 |
| $ | 3,060 |
| $ | (4,787 | ) | $ | 2,704 |
| 2015 | 4,185 |
| 5,834 |
| (5,588 | ) | 4,431 |
| 2014 | 5,158 |
| 4,407 |
| (5,380 | ) | 4,185 |
|
Below is a summary of the changes in our allowance for doubtful accounts. | | | | | | | | | | | | | | Years ended December 31, (in thousands) | Balance at beginning of year |
| Provision/adjustment |
| Write-off |
| Balance at end of year |
| 2016 | $ | 512 |
| $ | 499 |
| $ | (424 | ) | $ | 587 |
| 2015 | 354 |
| 699 |
| (541 | ) | 512 |
| 2014 | 455 |
| 777 |
| (878 | ) | 354 |
|
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Schedule of Changes in Deferred Sales Commission Costs | Below is a summary of the changes in our deferred sales commission costs included in prepaid expenses and other current assets. | | | | | | | | | | | | | | Years ended December 31, (in thousands) | Balance at beginning of year |
| Additions |
| Expense |
| Balance at end of year |
| 2016 | $ | 30,141 |
| $ | 37,553 |
| $ | (30,235 | ) | $ | 37,459 |
| 2015 | 22,630 |
| 55,934 |
| (48,423 | ) | 30,141 |
| 2014 | 20,088 |
| 24,615 |
| (22,073 | ) | 22,630 |
|
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Adoption of New Standard Impact on Previously Reported Quarterly Results | The following table summarizes the impact to our consolidated balance sheet, including the net amount charged to retained earnings as of January 1, 2016: | | | | | | (dollars in thousands) | As of January 1, 2016 | | Balance sheet location | Amount | Decrease in deferred tax liabilities related to the cumulative effect adjustment from our election to recognize forfeitures as they occur rather than applying an estimated forfeiture rate | Deferred tax liability | $ | (606 | ) | Increase in additional paid-in capital resulting from our election to recognize forfeitures as they occur | Additional paid-in capital | $ | 1,540 |
| Net charge to retained earnings for cumulative effect adjustment from adoption of ASU 2016-09 | Retained earnings | $ | (934 | ) |
The adoption of ASU 2016-09 impacted our previously reported quarterly results for fiscal year 2016 as follows: | | | | | | | | | | | | | | | Consolidated balance sheets: | | | | | | (dollars in thousands) | As of March 31, 2016 | | As of June 30, 2016 | | As Reported | As Adjusted | | As Reported | As Adjusted | Additional paid-in capital | $ | 285,376 |
| $ | 285,606 |
| | $ | 294,810 |
| $ | 294,019 |
| Retained earnings | $ | 134,192 |
| $ | 134,500 |
| | $ | 136,338 |
| $ | 137,893 |
| | | | | | | Consolidated statements of comprehensive income: | | | | | | (dollars in thousands, except per share amounts) | Three months ended March 31, 2016 | | Three months ended June 30, 2016 | | As Reported | As Adjusted | | As Reported | As Adjusted | Income tax provision | $ | 2,664 |
| $ | 1,595 |
| | $ | 3,598 |
| $ | 1,778 |
| Net income | $ | 4,995 |
| $ | 6,237 |
| | $ | 7,813 |
| $ | 9,060 |
| Basic earnings per share | $ | 0.11 |
| $ | 0.14 |
| | $ | 0.17 |
| $ | 0.20 |
| Diluted earnings per share | $ | 0.11 |
| $ | 0.13 |
| | $ | 0.17 |
| $ | 0.19 |
| Diluted weighted average shares outstanding | 46,757,458 |
| 47,064,164 |
| | 46,927,626 |
| 47,263,844 |
| | | | | | | Consolidated statements of cash flows: | | | | | | (dollars in thousands) | Three months ended March 31, 2016 | | Six months ended June 30, 2016 | | As Reported | As Adjusted | | As Reported | As Adjusted | Net cash provided by operating activities | $ | 104 |
| $ | 6,757 |
| | $ | 37,987 |
| $ | 48,753 |
| Net cash provided by (used in) financing activities | $ | 9,546 |
| $ | 2,893 |
| | $ | (13,852 | ) | $ | (24,618 | ) |
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