XML 76 R64.htm IDEA: XBRL DOCUMENT
v3.20.2

Note 13. Share Owners' Equity (Details) - USD ($) | 3 Months Ended | 59 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Nov. 08, 2018 | Aug. 23, 2017 | Sep. 29, 2016 | Oct. 21, 2015
Stock Repurchase Program, Authorized Amount | $ 80,000,000 |  | $ 80,000,000 |  |  |  |
Treasury Stock, Value, Acquired, Cost Method |  | $ 3,481,000 |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share |  |  | $ 14.93 |  |  |  |
Treasury Stock |  |  |  |  |  |  |
Treasury Stock, Value, Acquired, Cost Method | $ 0 | $ 3,481,000 | $ 76,700,000 |  |  |  |
Share Repurchase Program October 2015 |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  | $ 20,000,000
Share Repurchase Program September 2016 Extension |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  | $ 20,000,000 |
Share Repurchase Program August 2017 Extension |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 20,000,000 |  |
Share Repurchase Program November 2018 Extension |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  | $ 20,000,000 |  |  |

X
- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
Name: | us-gaap_TreasuryStockAcquiredAverageCostPerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_TreasuryStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=ke_SharerepurchaseprogramOctober2015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=ke_SharerepurchaseplanSeptember2016extensionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=ke_ShareRepurchaseProgramAugust2017ExtensionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=ke_ShareRepurchaseProgramNovember2018ExtensionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |