XML 40 R27.htm IDEA: XBRL DOCUMENT
v3.19.1

Stock-Based Compensation (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2019
Stock-Based Compensation |
Schedule of stock-based compensation fair value assumptions |
|  | 2019 |  | 2018 |
Expected life (years) |  | 3.0 |  | 3.0 |
Expected stock price volatility |  | 23.3 | % | 24.1 | %
Expected dividend yield |  | 1.1 | % | 1.0 | %
Risk-free interest rate |  | 2.5 | % | 2.4 | %

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 significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration