XML 42 R29.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Supplemental Cash Flow Information (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Supplemental Cash Flow Elements [Abstract] |
Supplemental Cash Flow Information |
| Years Ending December 31,
| 2015 |  | 2014 |  | 2013
Supplemental disclosures: | (in thousands)
Interest paid | $ | — |  |  | $ | — |  |  | $ | 1 |
Income taxes paid, net | 24,125 |  |  | 26,456 |  |  | 19,884 |
Non-cash investing and financing activities: |  |  |  |  |
Non-cash capital expenditures | 83 |  |  | (79 | ) |  | 71 |
Trade-in of equipment | — |  |  | — |  |  | 315 |

X
- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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