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Accrued Expenses | 12 Months Ended
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Dec. 31, 2016
Payables and Accruals [Abstract] |
Accrued Expenses | Accrued Expenses Accrued expenses consisted of the following (in thousands):
| December 31,
| 2016 |  | 2015
Company bonuses | $ | 11,462 |  |  | $ | 4,895 |
Salaries, commissions, and payroll taxes | 7,193 |  |  | 4,859 |
Vacation | 4,860 |  |  | 4,482 |
Warranty obligations | 4,335 |  |  | 4,174 |
Foreign retirement obligations | 3,388 |  |  | 3,249 |
Other | 11,301 |  |  | 11,613 |
| $ | 42,539 |  |  | $ | 33,272 |
The changes in the warranty obligation were as follows (in thousands):
Balance as of December 31, 2014 | $ | 4,086 |
Provisions for warranties issued during the period | 4,383 |
Fulfillment of warranty obligations | (3,873 | )
Foreign exchange rate changes | (422 | )
Balance as of December 31, 2015 | 4,174 |
Provisions for warranties issued during the period | 3,001 |
Fulfillment of warranty obligations | (2,689 | )
Foreign exchange rate changes | (151 | )
Balance as of December 31, 2016 | $ | 4,335 |

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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