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Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2017
Revenue Recognition |
Schedule of activity of accounts receivable allowance | A rollforward of the accounts receivable allowance is as follows (in thousands):
|  | Fiscal Year-to-Date Period Ended |  | Fiscal Year Ended |
|  | September 30, 2017 |  | December 31, 2016 |
Balance at beginning of period |  | $ | 4,253 |  | $ | 3,648 |
Increases to reserve |  |  | 6,076 |  |  | 2,761 |
Amounts written off |  |  | (2,852 | ) |  | (2,156 | )
Effects of foreign currency translation |  |  | 9 |  |  | — |
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Balance at end of period |  | $ | 7,486 |  | $ | 4,253 |
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Schedule of activity of unbilled receivables allowance | A rollforward of the unbilled receivables allowance is as follows (in thousands):
|  | Fiscal Year-to-Date Period Ended |  | Fiscal Year Ended |
|  | September 30, 2017 |  | December 31, 2016 |
Balance at beginning of period |  | $ | 1,720 |  | $ | 2,354 |
Increases to reserves |  |  | 1,727 |  |  | 2,102 |
Amounts written off |  |  | (914 | ) |  | (2,736 | )
Effects of foreign currency translation |  |  | (2 | ) |  | — |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at end of period |  | $ | 2,531 |  | $ | 1,720 |
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Schedule of reimbursable expenses included in revenues | Reimbursable expenses are as follows (in thousands):
|  | Quarter Ended |  | Fiscal Year-to-Date Period Ended |
|  | September 30, 2017 |  | October 1, 2016 |  | September 30, 2017 |  | October 1, 2016 |
Reimbursable expenses |  | $ | 9,675 |  | $ | 8,969 |  | $ | 29,463 |  | $ | 25,510 |

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- Definition Tabular disclosure of allowance for accounts receivable in total which includes a roll forward schedule. + References No definition available. + Details
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- Definition Tabular disclosure of unbilled receivables allowance in total which includes a roll forward schedule. + References No definition available. + Details
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- Definition Represents the reimbursable expenses which include travel and other out-of-pocket expenses, outside consultants, and other reimbursable expenses included in costs of services. + References No definition available. + Details
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- References No definition available. + Details
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