XML 47 R33.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Stock-Based Compensation |
Schedule of compensation expense |
|  | Years Ended December 31,
(in millions) |  | 2016 |  | 2015 |  | 2014
Pre-tax compensation expense |  | $ | 6.1 |  | $ | 5.1 |  | $ | 4.5
Schedule of weighted-average assumptions for stock options |
|  | Years Ended December 31, |
|  | 2016 |  | 2015 |  | 2014 |
Expected dividend yield |  |  | 1.4 | % |  | 1.1 | % |  | 1.2 | %
Expected life in years |  |  | 5.61 |  |  | 5.71 |  |  | 5.74 |
Expected volatility |  |  | 27.5 | % |  | 27.3 | % |  | 29.3 | %
Risk-free interest rate |  |  | 1.4 | % |  | 1.4 | % |  | 1.7 | %
Weighted-average fair value |  | $ | 19.30 |  | $ | 21.19 |  | $ | 19.15 |
Schedule of stock option activity under the Company's stock option awards |
|  |  |  | Weighted-Average
|  | Number of |  | Exercise
|  | Shares |  | Price
Outstanding at January 1, 2014 |  | 2,993,007 |  | $ | 38.76
Options granted |  | 259,035 |  |  | 73.08
Options exercised |  | (925,520) |  |  | 38.63
Options forfeited / expired |  | (49,885) |  |  | 56.89
Outstanding at December 31, 2014 |  | 2,276,637 |  | $ | 42.32
Options granted |  | 316,345 |  |  | 92.84
Options exercised |  | (748,270) |  |  | 38.44
Options forfeited / expired |  | (34,632) |  |  | 81.68
Outstanding at December 31, 2015 |  | 1,810,080 |  | $ | 52.00
Options granted |  | 371,623 |  |  | 83.85
Options exercised |  | (888,166) |  |  | 37.25
Options forfeited / expired |  | (29,872) |  |  | 85.07
Outstanding at December 31, 2016 |  | 1,263,665 |  | $ | 70.95
Schedule of activity related to restricted stock |
|  |  |  | Weighted-Average
|  | Number of |  | Grant Date
|  | Shares |  | Fair Value
Outstanding at January 1, 2014 |  | 240,990 |  | $ | 49.66
Shares granted |  | 104,773 |  |  | 76.70
Shares vested |  | (94,590) |  |  | 38.57
Shares forfeited |  | (4,185) |  |  | 63.73
Outstanding at December 31, 2014 |  | 246,988 |  | $ | 65.14
Shares granted |  | 58,040 |  |  | 90.54
Shares vested |  | (75,740) |  |  | 49.56
Shares forfeited |  | (2,881) |  |  | 81.32
Outstanding at December 31, 2015 |  | 226,407 |  | $ | 76.66
Shares granted |  | 69,583 |  |  | 84.73
Shares vested |  | (67,570) |  |  | 64.80
Shares forfeited |  | (3,155) |  |  | 84.93
Outstanding at December 31, 2016 |  | 225,265 |  | $ | 82.59
Schedule of activity related to performance shares |
|  | Number of |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Performance |  |  | 2016 |  | 2015 |  | 2014 |  | 2013 |  | 2012 |  | 2011
|  | Units |  |  | Awards |  | Awards |  | Awards |  | Awards |  | Awards |  | Awards
Outstanding at January 1, 2014 |  | 328,990 |  |  | - |  | - |  | - |  | 70,175 |  | 77,595 |  | 181,220
Units granted (1) |  | 137,890 |  |  | - |  | - |  | 67,970 |  | - |  | 69,920 |  | -
Units vested and issued |  | (135,008) |  |  | - |  | - |  | - |  | - |  | - |  | (135,008)
Units vested and deferred |  | (46,212) |  |  | - |  | - |  | - |  | - |  | - |  | (46,212)
Units forfeited |  | (4,185) |  |  | - |  | - |  | (1,465) |  | (1,630) |  | (1,090) |  | -
Outstanding at December 31, 2014 |  | 281,475 |  |  | - |  | - |  | 66,505 |  | 68,545 |  | 146,425 |  | -
Units granted (1) |  | 95,536 |  |  | - |  | 58,040 |  | - |  | 37,496 |  | - |  | -
Units vested and issued |  | (112,814) |  |  | - |  | - |  | - |  | - |  | (112,814) |  | -
Units vested and deferred |  | (33,611) |  |  | - |  | - |  | - |  | - |  | (33,611) |  | -
Units forfeited |  | (2,340) |  |  | - |  | (1,220) |  | (750) |  | (370) |  | - |  | -
Outstanding at December 31, 2015 |  | 228,246 |  |  | - |  | 56,820 |  | 65,755 |  | 105,671 |  | - |  | -
Units granted (1) |  | 100,139 |  |  | 61,127 |  | - |  | 39,012 |  | - |  | - |  | -
Units vested and issued |  | (81,604) |  |  | - |  | - |  | - |  | (81,604) |  | - |  | -
Units vested and deferred |  | (24,067) |  |  | - |  | - |  | - |  | (24,067) |  | - |  | -
Units forfeited |  | (3,155) |  |  | (1,040) |  | (1,380) |  | (735) |  | - |  | - |  | -
Outstanding at December 31, 2016 |  | 219,559 |  |  | 60,087 |  | 55,440 |  | 104,032 |  | - |  | - |  | -
| (1) |  | The Company's relative total shareholder return versus companies in the S&P Midcap 400 Index® over the period covered by the 2014 awards, 2013 awards, and 2012 awards resulted in participants being awarded an additional 39,012 shares, 37,496 shares, and 69,920 shares, respectively, under the plan. The awarding of these additional shares had no impact on stock-based compensation expense as the likelihood of their issuance was included in the determination of grant date fair value using a Monte Carlo simulation approach.

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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration