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Supplementary Balance Sheet Information | 12 Months Ended
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Dec. 31, 2015
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Supplementary Balance Sheet Information | 9. Supplementary Balance Sheet Information The following tables provide the details of selected balance sheet items as of the dates indicated (in thousands): 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
| 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 |
As of December 31, 2015 and 2014, the Company has gross assets under capital lease of $13.2 and $12.7 million, respectively. The assets acquired under capital leases are included in land, buildings and improvements and machinery and equipment and the related amortization expense is included in depreciation expense. The Company also capitalized software development costs of $1.9 million, $0.2 million and $0.2 million in 2015, 2014 and 2013, respectively, in accordance with the guidance in ASC 350-40, “Internal-Use Software.” 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 |
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 |
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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