XML 71 R51.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Earnings per Common Share (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings per Share | The following table sets forth the computation of basic and diluted earnings per common share:
Year Ended December 31, | 2018 |  | 2017 |  | 2016
Net income, basic and diluted | $ | 160.2 |  |  | $ | 106.5 |  |  | $ | 95.7 |
Weighted average common shares outstanding for basic earnings per share computation | 57,778,857 |  |  | 51,429,366 |  |  | 44,511,774 |
Dilutive effects of stock-based compensation | 438,266 |  |  | 473,843 |  |  | 398,622 |
Weighted average common shares outstanding for diluted earnings per common share computation | 58,217,123 |  |  | 51,903,209 |  |  | 44,910,396 |
Basic earnings per common share | $ | 2.77 |  |  | $ | 2.07 |  |  | $ | 2.15 |
Diluted earnings per common share | 2.75 |  |  | 2.05 |  |  | 2.13 |

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 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://fasb.org/us-gaap/role/ref/legacyRef -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