XML 35 R24.htm IDEA: XBRL DOCUMENT
v3.19.2

Note 4 - Earnings Per Share (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Notes Tables |
Distributed And Undistributed Earnings [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, 2019 |  |  | July 1, 2018 |  |  | June 30, 2019 |  |  | July 1, 2018 |
Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributed Earnings |  | $ | 0.07 |  |  | $ | 0.07 |  |  | $ | 0.13 |  |  | $ | 0.13 |
Undistributed Earnings |  |  | 0.43 |  |  |  | 0.28 |  |  |  | 0.48 |  |  |  | 0.47 |
Total |  | $ | 0.50 |  |  | $ | 0.35 |  |  | $ | 0.61 |  |  | $ | 0.60 |
Diluted Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributed Earnings |  | $ | 0.07 |  |  | $ | 0.07 |  |  | $ | 0.13 |  |  | $ | 0.13 |
Undistributed Earnings |  |  | 0.43 |  |  |  | 0.28 |  |  |  | 0.48 |  |  |  | 0.47 |
Total |  | $ | 0.50 |  |  | $ | 0.35 |  |  | $ | 0.61 |  |  | $ | 0.60 |
Basic earnings per share |  | $ | 0.50 |  |  | $ | 0.35 |  |  | $ | 0.61 |  |  | $ | 0.60 |
Diluted earnings per share |  | $ | 0.50 |  |  | $ | 0.35 |  |  | $ | 0.61 |  |  | $ | 0.60 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | Ju ne 30, 201 9 |  |  | July 1, 201 8 |  |  | Ju ne 30, 201 9 |  |  | July 1, 201 8 |
|  |  |  |  |  | (In millions) |  |  |  |  |
Net Income Attributable to Participating Securities |  | $ | 0.3 |  |  | $ | 0.2 |  |  | $ | 0.3 |  |  | $ | 0.3 |
|  | Three Months Ended |  |  | Six Months Ended |
|  | Ju ne 30, 201 9 |  |  | July 1, 201 8 |  |  | Ju ne 30, 201 9 |  |  | July 1, 201 8 |
|  |  |  |  |  | (In thousands) |  |  |  |  |
Weighted Average Shares Outstanding |  |  | 58,760 |  |  |  | 58,910 |  |  |  | 58,934 |  |  |  | 58,999 |
Participating Securities |  |  | 525 |  |  |  | 583 |  |  |  | 525 |  |  |  | 583 |
Shares for Basic Earnings Per Share |  |  | 59,285 |  |  |  | 59,493 |  |  |  | 59,459 |  |  |  | 59,582 |
Dilutive Effect of Stock Options |  |  | 6 |  |  |  | 45 |  |  |  | 6 |  |  |  | 45 |
Shares for Diluted Earnings Per Share |  |  | 59,291 |  |  |  | 59,538 |  |  |  | 59,465 |  |  |  | 59,627 |

X
- Definition Distributed and undistributed earnings. + References No definition available. + Details
Name: | tile_DistributedAndUndistributedEarningsTableTextBlock
Namespace Prefix: | tile_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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