XML 64 R44.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Quarterly Financial Data (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2012
Schedule of Quarterly Financial Information | Due to the seasonal nature of our business, there are substantial variations in operations reported on a quarterly basis.
For the Quarters Ended |  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |
(in thousands except per share amounts) |  |  |  |  |  |  |  |  |  |  |  |
2012 (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  | $ | 120,914 |  |  | $ | 83,897 |  |  | $ | 78,175 |  |  | $ | 109,516 |
Operating Income |  | $ | 20,073 |  |  | $ | 10,455 |  |  | $ | 7,564 |  |  | $ | 18,543 |
Net Income |  | $ | 10,727 |  |  | $ | 5,060 |  |  | $ | 3,219 |  |  | $ | 9,857 |
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.12 |  |  | $ | 0.53 |  |  | $ | 0.34 |  |  | $ | 1.03 |
Diluted |  | $ | 1.11 |  |  | $ | 0.52 |  |  | $ | 0.33 |  |  | $ | 1.02 |
2011 (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenue |  | $ | 146,597 |  |  | $ | 86,831 |  |  | $ | 80,610 |  |  | $ | 103,988 |
Operating Income |  | $ | 24,839 |  |  | $ | 7,776 |  |  | $ | 5,594 |  |  | $ | 15,495 |
Net Income |  | $ | 13,747 |  |  | $ | 3,520 |  |  | $ | 2,397 |  |  | $ | 7,957 |
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.44 |  |  | $ | 0.37 |  |  | $ | 0.25 |  |  | $ | 0.83 |
Diluted |  | $ | 1.43 |  |  | $ | 0.37 |  |  | $ | 0.25 |  |  | $ | 0.83 |
(1) | The sum of the four quarters does not equal the total year due to rounding.

X
- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306 + Details
Name: | us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration