XML 53 R40.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Net Income Per Share and Stockholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Earnings Per Share [Abstract] |
Calculation of basic and diluted earnings per share | asic and diluted net income per share for the periods presented (in millions of dollars, except share and per share amounts):
|  | Year Ended December 31,
|  | 2018 |  | 2017 |  | 2016
Numerator: |  |  |  |  |  |  |
Net income |  | $ | 91.7 |  |  | $ | 45.4 |  |  | $ | 91.7 |
Denominator – Weighted-average common shares outstanding (in thousands): |  |  |  |  |  |
Basic |  | 16,585 |  |  | 16,996 |  |  | 17,813 |
Add: dilutive effect of non-vested common shares, restricted stock units and performance shares 1 |  | 289 |  |  | 263 |  |  | 220 |
Diluted |  | 16,874 |  |  | 17,259 |  |  | 18,033 |
Net income per common share, Basic: |  | $ | 5.53 |  |  | $ | 2.67 |  |  | $ | 5.15 |
Net income per common share, Diluted: |  | $ | 5.43 |  |  | $ | 2.63 |  |  | $ | 5.09 |
Treasury Stock | Repurchases of our common stock pursuant to the stock repurchase program is recorded as Treasury stock and consisted of the following for each period presented:
|  | Year Ended December 31,
|  | 2018 |  | 2017 |  | 2016
Number of common shares repurchased |  | 617,151 |  |  | 938,680 |  |  | 443,838 |
Weighted-average repurchase price (dollars per share) |  | $ | 100.28 |  |  | $ | 82.97 |  |  | $ | 78.59 |
Total cost of repurchased common shares (in millions of dollars) |  | $ | 61.9 |  |  | $ | 77.8 |  |  | $ | 34.9 |

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

X
- Definition The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2208821 + Details
Name: | us-gaap_TreasuryStockTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration