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v3.3.1.900

Balance Sheet Details (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Jan. 31, 2013 ft² | Nov. 04, 2011 ft²
Property, plant and equipment, net |  |  |  |  |  |
Property, plant and equipment, gross | $ 124,271 | $ 124,271 | $ 122,116 |  |  |
Less accumulated depreciation and amortization | (67,655) | (67,655) | (58,093) |  |  |
Property, plant and equipment, net | 56,616 | 56,616 | 64,023 |  |  |
Restructuring costs | 3,600 | 3,576 | 39 | $ 5,546 |  |
Construction in progress, capitalized | 40,320 | 40,320 | 40,320 |  |  |
Depreciation expense |  | 12,379 | 13,625 | 15,451 |  |
Building |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Property, plant and equipment, gross | 40,320 | 40,320 | 40,320 |  |  |
Computer software |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Property, plant and equipment, gross | 20,012 | 20,012 | 21,412 |  |  |
Computer equipment |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Property, plant and equipment, gross | 31,224 | 31,224 | 27,744 |  |  |
Furniture and fixtures |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Property, plant and equipment, gross | 13,943 | 13,943 | 13,464 |  |  |
Leasehold improvements |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Property, plant and equipment, gross | 7,098 | 7,098 | 7,052 |  |  |
Machinery |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Property, plant and equipment, gross | 11,037 | 11,037 | 11,699 |  |  |
Construction in progress |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Property, plant and equipment, gross | $ 637 | $ 637 | $ 425 |  |  |
LDT | Building Improvements |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Tangible asset impairment charges |  |  |  | 3,500 |  |
LDT | Computer software |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Tangible asset impairment charges |  |  |  | 200 |  |
LDT | Machinery |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Tangible asset impairment charges |  |  |  | 500 |  |
Facility Closing [Member] |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Restructuring costs |  |  |  | $ 2,000 |  |
MTSPELLC Amended [Member] |  |  |  |  |  |
Property, plant and equipment, net |  |  |  |  |  |
Total space under lease (in square feet) | ft² |  |  |  |  | 31,000 | 31,000

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