Employee Retirement Plans - Defined Contribution and Nonqualified Plans (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Defined contribution plan | |||
| Company's matching contributions | $ 625 | $ 863 | $ 377 |
| Non-discretionary employer contributions | 1,128 | 901 | 1,264 |
| Expense | 1,278 | 1,221 | |
| Non-qualified plan | |||
| Defined contribution plan | |||
| Expense | 526 | 511 | 496 |
| Amount accrued | $ 4,980 | 3,471 | 2,482 |
| Henderson Defined Contribution Plan | |||
| Defined contribution plan | |||
| Company's matching contributions | $ 299 | ||
| Dejana Defined Contribution Plan | |||
| Defined contribution plan | |||
| Company's matching contributions | $ 119 | ||
| X | ||||||||||
- Definition Represents amount of non-discretionary contributions made by an employer to a defined contribution plan. No definition available.
|
| X | ||||||||||
- Definition The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of the cost recognized during the period for defined contribution plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition This represents the entire liability recognized in the balance sheet that is associated with the defined benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|