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Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
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Property, plant and equipment [Abstract] |  |
Property, plant and equipment, net | $ 131,617 | $ 115,825
Machinery and equipment |  |
Property, plant and equipment [Abstract] |  |
Property, plant and equipment, gross | 56,106 | 48,206
Less: accumulated depreciation and amortization | (39,366) | (37,832)
Building |  |
Property, plant and equipment [Abstract] |  |
Property, plant and equipment, gross | 104,252 | 94,567
Less: accumulated depreciation and amortization | (17,668) | (15,324)
Leasehold improvements |  |
Property, plant and equipment [Abstract] |  |
Property, plant and equipment, gross | 6,666 | 6,285
Less: accumulated depreciation and amortization | (5,138) | (4,616)
Construction in progress |  |
Property, plant and equipment [Abstract] |  |
Property, plant and equipment, gross | 26,765 | 24,539
Construction in progress Dingxin and Kazuo locations |  |
Property, plant and equipment [Abstract] |  |
Property, plant and equipment, gross | 18,400 | 14,200
Construction in progress manufacturing equipment purchases |  |
Property, plant and equipment [Abstract] |  |
Property, plant and equipment, gross | 3,700 | 4,000
Construction in progress other consolidated subsidiaries |  |
Property, plant and equipment [Abstract] |  |
Property, plant and equipment, gross | $ 4,700 | $ 6,300

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