XML 38 R21.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Summary of Significant Accounting Polices (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Accounting Policies [Abstract] |
Schedule of Estimated Useful Life | For financial reporting purposes, assets are generally depreciated using the following estimated useful lives and salvage values:
|  | Lives |  | Salvage Values
Building and improvements |  | 30 years |  | 0%
Tractors |  | 80 months |  | 0%
Trailers |  | 12 years |  | $1,000
Service and other equipment |  | 3-10 years |  | 0%
Schedule Of Basic and Diluted Earnings Per Share | The computation of basic and diluted earnings per share is shown below (in thousands, except per share amounts).
| Years Ended December 31,
| 2016 |  | 2015 |  | 2014
Net income | $ | 79,129 |  |  | $ | 123,714 |  |  | $ | 98,650 |
Weighted average common shares outstanding | 72,057 |  |  | 71,957 |  |  | 72,122 |
Dilutive effect of stock-based awards | 336 |  |  | 599 |  |  | 616 |
Shares used in computing diluted earnings per share | 72,393 |  |  | 72,556 |  |  | 72,738 |
Basic earnings per share | $ | 1.10 |  |  | $ | 1.72 |  |  | $ | 1.37 |
Diluted earnings per share | $ | 1.09 |  |  | $ | 1.71 |  |  | $ | 1.36 |

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

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration