XML 44 R31.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Accrued Liabilities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Accrued Liabilities, Current [Abstract] |
Summary of Accrued Liabilities | Accrued liabilities consist of the following at December 31:
| 2018 |  | 2017
Accrued wages, bonuses and commissions | $ | 40,100 |  |  | $ | 43,688 |
Other accrued liabilities | 26,380 |  |  | 20,987 |
| $ | 66,480 |  |  | $ | 64,675 |

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