XML 112 R16.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Earnings Per Share | 12 Months Ended
--- | ---
Dec. 31, 2013
Earnings Per Share [Abstract] |
Earnings Per Share | Note 4. Earnings Per Share Basic earnings per share is based on the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the effect of options that are dilutive and outstanding during the period. Per share amounts are computed as follows:
|  | 2013 |  |  | 2012 |  |  | 2011 |
Numerator (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 77.8 |  |  | $ | 66.9 |  |  | $ | 47.1 |
Denominator (in thousands): |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  |  | 23,651 |  |  |  | 23,187 |  |  |  | 23,568 |
Dilutive effect of stock options and awards |  |  | 505 |  |  |  | 663 |  |  |  | 952 |
Denominator for diluted earnings per share |  |  | 24,156 |  |  |  | 23,850 |  |  |  | 24,520 |
Net income per share, basic: |  | $ | 3.29 |  |  | $ | 2.89 |  |  | $ | 2.00 |
Net income per share, diluted: |  | $ | 3.22 |  |  | $ | 2.81 |  |  | $ | 1.92 |
In 2013, 2012 and 2011 the average number of anti-dilutive options excluded from the calculation of diluted earnings per share were nil, 1,380 and 690 respectively.

X
- Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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