Property and Equipment (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Dec. 31, 2017 |
|
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | $ 220,378 | $ 220,378 | $ 187,572 | ||
| Less accumulated depreciation | (20,539) | (20,539) | (13,451) | ||
| Property and equipment, net | 199,839 | 199,839 | 174,121 | ||
| Depreciation expense | 3,800 | $ 3,000 | 7,200 | $ 5,800 | |
| Land and buildings | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | 37,415 | 37,415 | 32,088 | ||
| Machinery and equipment | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | 169,633 | 169,633 | 141,995 | ||
| Construction in progress | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | $ 13,330 | $ 13,330 | $ 13,489 | ||