XML 34 R23.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Deferred Compensation and Retirement Plans (Tables) | 9 Months Ended
--- | ---
Jan. 31, 2016
Deferred Compensation Plans |
Components Of Net Periodic Benefit Costs | The components of net periodic benefit costs are as follows:
|  | Three Months Ended January 31, |  |  | Nine Months Ended January 31, |
|  | 2016 |  |  | 2015 |  |  | 2016 |  |  | 2015 |
|  | (in thousands) |
Amortization of actuarial loss |  | $ | 730 |  |  | $ | 763 |  |  | $ | 2,192 |  |  | $ | 2,288 |
Interest cost |  |  | 703 |  |  |  | 747 |  |  |  | 2,109 |  |  |  | 2,242 |
Net periodic benefit costs |  | $ | 1,433 |  |  | $ | 1,510 |  |  | $ | 4,301 |  |  | $ | 4,530 |

X
- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2439-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2410-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=58242635&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=kfy_DeferredCompensationPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |