XML 38 R26.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Accrued Liabilities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Accrued Liabilities, Current [Abstract] |
Summary of Accrued Liabilities | Accrued liabilities consist of the following at December 31:
| 2017 |  | 2016
Accrued wages, bonuses and commissions | $ | 43,688 |  |  | $ | 38,996 |
Other accrued liabilities | 20,987 |  |  | 16,993 |
| $ | 64,675 |  |  | $ | 55,989 |

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