XML 46 R39.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Share-based Payment Arrangement [Abstract] |
Restricted Stock Unit and Performance Share Transactions | A summary of restricted stock unit and performance share transactions for the year ended December 31, 2019, is shown below:
| Restricted Stock Units | Weighted Average Grant Date Fair Value | Performance Shares | Weighted Average Grant Date Fair Value
Outstanding as of December 31, 2018 | 517,331 |  | $125.30 | 920,706 |  | $139.56
Granted | 379,242 |  | $134.65 | 383,798 |  | $124.48
Distributed (vested) | (156,974 | ) |  | (364,054 | ) |
Cancelled | (34,463 | ) |  | (90,906 | ) |
Outstanding as of December 31, 2019 (1) | 705,136 |  | $128.71 | 849,544 |  | $140.83
Vested or expected to vest as of December 31, 2019 | 705,136 |  |  | 200,863 |  |
(1) Outstanding performance shares are reflected at the maximum possible payout that may be earned during the relevant performance periods.

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 activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value. + 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 (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration