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Supplementary Balance Sheet Information (Tables) | 12 Months Ended
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Dec. 31, 2015
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Inventories | Inventories
| December 31, |
| 2015 |  |  | 2014 |
Raw materials | $ | 38,511 |  |  | $ | 38,934 |
Work-in-process |  | 10,138 |  |  |  | 9,899 |
Finished goods |  | 9,266 |  |  |  | 11,945 |
Demo and consigned inventory |  | 1,651 |  |  |  | 2,165 |
Total inventories | $ | 59,566 |  |  | $ | 62,943 |
Property, Plant and Equipment, net | Property, Plant and Equipment, net
| December 31, |
| 2015 |  |  | 2014 |
Cost: |  |  |  |  |  |  |
Land, buildings and improvements | $ | 48,154 |  |  | $ | 46,222 |
Machinery and equipment |  | 43,376 |  |  |  | 50,487 |
Total cost |  | 91,530 |  |  |  | 96,709 |
Accumulated depreciation |  | (50,980 | ) |  |  | (56,621 | )
Property, plant and equipment, net | $ | 40,550 |  |  | $ | 40,088 |
Summary of Depreciation Expense on Property, Plant and Equipment, Including Demo Units and Assets under Capital Leases | The following table summarizes depreciation expense on property, plant and equipment, including demo units and assets under capital leases (in thousands):
| Year Ended December 31, |
| 2015 |  |  | 2014 |  |  | 2013 |
Depreciation expense | $ | 7,873 |  |  | $ | 8,016 |  |  | $ | 7,400 |
Summary of Total Accumulated Depreciation on Assets under Capital Leases | The following table summarizes total accumulated depreciation on assets under capital leases as of the dates indicated (in thousands):
| December 31, |
| 2015 |  |  | 2014 |
Accumulated depreciation on assets under capital leases | $ | 3,798 |  |  | $ | 2,741 |
Accrued Expenses and Other Current Liabilities | The following table summarizes accrued expenses and other current liabilities as of the dates indicated (in thousands):
| December 31, |
| 2015 |  |  | 2014 |
Accrued compensation and benefits | $ | 7,357 |  |  | $ | 7,741 |
Accrued warranty |  | 3,335 |  |  |  | 3,044 |
Accrued restructuring |  | 1,652 |  |  |  | 109 |
Accrued professional services fees and other |  | 8,838 |  |  |  | 8,507 |
Total | $ | 21,182 |  |  | $ | 19,401 |
Accrued Warranty | The following table summarizes accrued warranty activities for the periods indicated (in thousands):
| Year Ended December 31, |
| 2015 |  |  | 2014 |
Balance at beginning of year | $ | 3,044 |  |  | $ | 3,315 |
Provision charged to cost of revenue |  | 2,025 |  |  |  | 1,684 |
Acquisition related warranty accrual |  | 132 |  |  |  | 90 |
Use of provision |  | (1,454 | ) |  |  | (2,003 | )
Divestiture of JK Lasers |  | (389 | ) |  |  | — |
Foreign currency exchange rate changes |  | (23 | ) |  |  | (42 | )
Balance at end of year | $ | 3,335 |  |  | $ | 3,044 |
Summary of Other Long Term Liabilities | The following table summarizes other long term liabilities as of the dates indicated (in thousands):
| December 31, |
| 2015 |  |  | 2014 |
Capital lease obligations | $ | 9,173 |  |  | $ | 9,507 |
Accrued pension liabilities |  | 3,693 |  |  |  | 6,037 |
Accrued contingent considerations |  | 3,889 |  |  |  | — |
Other |  | 2,690 |  |  |  | 3,275 |
Total |  | 19,445 |  |  |  | 18,819 |

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