XML 152 R37.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Accrued Liabilities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Accrued Liabilities, Current [Abstract] |
Schedule of Accrued Liabilities |
|  | December 31, 2019 |  | December 31, 2018
Accrued payroll |  | $ | 16,390 |  |  | $ | 17,950 |
High deductible insurance |  | 5,720 |  |  | 6,080 |
Other |  | 19,910 |  |  | 19,860 |
Total accrued liabilities |  | $ | 42,020 |  |  | $ | 43,890 |

X
- References No definition available. + Details
Name: | us-gaap_AccruedLiabilitiesCurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration