XML 33 R15.htm IDEA: XBRL DOCUMENT
v3.20.4

Net Earnings Per Share | 12 Months Ended
--- | ---
Dec. 31, 2020
Earnings Per Share [Abstract] |
Net Earnings Per Share | (6) Net Earnings Per Share The calculation of net earnings per share - basic and net earnings per share - diluted were as follows:
Year Ended December 31 |  | 2020 |  |  | 2019 |  |  | 2018 |
Net earnings available to common shareholders: |  | $ | 23.8 |  |  | $ | 465.7 |  |  | $ | 556.7 |
Weighted-average common shares outstanding (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average common shares outstanding - basic |  |  | 58.0 |  |  |  | 59.9 |  |  |  | 64.6 |
Effect of dilutive securities - stock options |  |  | — |  |  |  | — |  |  |  | 0.1 |
Effect of other share-based awards |  |  | 0.3 |  |  |  | 0.4 |  |  |  | 0.4 |
Weighted-average common shares outstanding - diluted |  |  | 58.3 |  |  |  | 60.3 |  |  |  | 65.1 |
Net earnings per share - basic |  | $ | 0.41 |  |  | $ | 7.78 |  |  | $ | 8.62 |
Net earnings per share - diluted |  | $ | 0.41 |  |  | $ | 7.72 |  |  | $ | 8.56 |
There were 0.6 million, 0.4 million, and 0.3 million share-based awards excluded from the calculation of net earnings per share - diluted for the year ended December 31, 2020, 2019 and 2018, respectively, because their impact was anti-dilutive.

X
- References No definition available. + 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration