Property, Plant and Equipment (Details) |
1 Months Ended | 3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|---|
|
Jun. 30, 2018
USD ($)
a
ft²
|
Jun. 30, 2018
USD ($)
a
ft²
|
Jun. 30, 2017
USD ($)
|
Jun. 30, 2018
USD ($)
a
ft²
|
Jun. 30, 2017
USD ($)
|
Dec. 31, 2017
a
|
|
| Property, Plant and Equipment [Line Items] | ||||||
| Impairment of long-lived assets held-for-use | $ 0 | $ 0 | $ 0 | $ 0 | ||
| Proceeds from sale of property, plant and equipment | 2,558,000 | 522,000 | ||||
| Gain on sale of property | $ 2,267,000 | $ 10,000 | ||||
| Mexico City, Mexico | ||||||
| Property, Plant and Equipment [Line Items] | ||||||
| Number of square feet | ft² | 29,300 | 29,300 | 29,300 | |||
| Proceeds from sale of property, plant and equipment | $ 2,600,000 | |||||
| Gain on sale of property | $ 2,300,000 | $ 2,300,000 | ||||
| Held-for-sale | Provo, Utah | ||||||
| Property, Plant and Equipment [Line Items] | ||||||
| Number of acres | a | 8 | 8 | 8 | 8 | ||
| X | ||||||||||
- Definition Area of land held. No definition available.
|
| X | ||||||||||
- Definition Area of a real estate property. No definition available.
|
| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|