XML 38 R23.htm IDEA: XBRL DOCUMENT
v3.20.4

Net Income Per Share | 12 Months Ended
--- | ---
Dec. 31, 2020
Earnings Per Share [Abstract] |
Net Income Per Share | Net Income Per Share The calculation of net income per share for the three years ended December 31, 2020, 2019 and 2018, are reflected in the following table (in thousands, except per share amounts):
|  | Year Ended December 31,
|  | 2020 |  | 2019 |  | 2018
Net income |  | $ | 306,276 |  |  | $ | 454,433 |  |  | $ | 434,288 |
Basic: |  |  |  |  |  |
Weighted average shares |  | 112,729 |  |  | 115,656 |  |  | 120,513 |
Diluted: |  |  |  |  |  |
Weighted average shares |  | 112,729 |  |  | 115,656 |  |  | 120,513 |
Dilutive effect of potential common shares |  | 589 |  |  | 755 |  |  | 1,089 |
Diluted weighted average shares |  | 113,318 |  |  | 116,411 |  |  | 121,602 |
Net income per share: |  |  |  |  |  |
Basic |  | $ | 2.72 |  |  | $ | 3.93 |  |  | $ | 3.60 |
Diluted |  | $ | 2.70 |  |  | $ | 3.90 |  |  | $ | 3.57 |
Potential common shares include the dilutive effect of unvested performance-based restricted stock, restricted stock which contains forfeitable rights to dividends, and stock units.

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 The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration