XML 38 R26.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Stock-Based Compensation (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of stock-based compensation expense | A summary of the Company’s stock-based compensation expense (benefit) is presented in the following table:
| Three Months Ended June 30, |  | Six Months Ended June 30,
(in millions) | 2018 |  | 2017 |  | 2018 |  | 2017
PRSU expense (benefit) | $ | 0.7 |  |  | $ | 1.2 |  |  | $ | 1.5 |  |  | $ | (8.1 | )
Option expense | 1.9 |  |  | 1.8 |  |  | 3.8 |  |  | 3.8 |
RSU/DSU expense | 4.2 |  |  | 3.0 |  |  | 7.8 |  |  | 6.9 |
Total stock-based compensation expense | $ | 6.8 |  |  | $ | 6.0 |  |  | $ | 13.1 |  |  | $ | 2.6 |

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration