XML 19 R10.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Earnings Per Common Share | 6 Months Ended
--- | ---
Jun. 30, 2013
Earnings Per Common Share | 2. Earnings Per Common Share Basic earnings per common share are calculated by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per common share adjust basic earnings per share for the effects of potentially dilutive common shares. Potentially dilutive common shares include the dilutive effects of shares issuable under our equity compensation plans, including stock options and restricted stock, and, for the three and six months ended June 30, 2012, shares issuable upon the potential conversion of our 3 3/4% senior subordinated convertible notes due on July 15, 2012 (“Convertible Notes”), each using the treasury stock method. In addition, the conversion feature of our Convertible Notes had a dilutive effect on our earnings per share for the three and six months ended June 30, 2012, assuming the conversion premium was converted into common stock based on the average closing price per share of our stock during those periods, because the average closing price per share of our common stock for such periods was above the conversion price of the Convertible Notes of $31.25 per share.
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Numerator—basic and diluted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 23,486 |  |  | $ | 7,747 |  |  | $ | 47,166 |  |  | $ | 26,178 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding—basic |  |  | 39,143 |  |  |  | 40,592 |  |  |  | 39,272 |  |  |  | 40,475 |
Effect of dilutive stock options |  |  | 589 |  |  |  | 646 |  |  |  | 592 |  |  |  | 804 |
Effect of dilutive convertible notes |  |  | — |  |  |  | 229 |  |  |  | — |  |  |  | 737 |
Effect of dilutive restricted shares |  |  | 561 |  |  |  | 607 |  |  |  | 592 |  |  |  | 656 |
Weighted average number of common shares outstanding—diluted |  |  | 40,293 |  |  |  | 42,074 |  |  |  | 40,456 |  |  |  | 42,672 |
Earnings per common share—basic |  | $ | 0.60 |  |  | $ | 0.19 |  |  | $ | 1.20 |  |  | $ | 0.65 |
Earnings per common share—diluted |  | $ | 0.58 |  |  | $ | 0.18 |  |  | $ | 1.17 |  |  | $ | 0.61 |
Antidilutive stock options and restricted shares |  |  | 3,593 |  |  |  | 3,530 |  |  |  | 3,541 |  |  |  | 2,806 |

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration