XML 121 R44.htm IDEA: XBRL DOCUMENT ﻿
v2.3.0.11

Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Apr. 30, 2011
Stock-Based Compensation |
Summary of Stock Options |
(in 000s, except per share amounts) |  |  |  |
|  |  |  |  |  |  |  | Weighted-Average |  |  |  |  |  |  |
|  |  |  |  | Weighted-Average |  |  | Remaining |  |  | Aggregate |  |  |  |
|  | Shares |  |  | Exercise Price |  |  | Contractual Term |  |  | Intrinsic Value |  |  |  |
Outstanding, beginning of the year |  |  | 15,082 |  |  | $ | 20.58 |  |  |  |  |  |  |  |  |  |  |  |  |
Granted |  |  | 2,080 |  |  |  | 13.29 |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  | (338 | ) |  |  | 10.64 |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited or expired |  |  | (6,034 | ) |  |  | 22.17 |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding, end of the year |  |  | 10,790 |  |  | $ | 18.64 |  |  |  | 4 years |  |  | $ | 9,224 |  |  |  |  |
Exercisable, end of the year |  |  | 8,122 |  |  | $ | 19.95 |  |  |  | 2 years |  |  | $ | 1,318 |  |  |  |  |
Exercisable and expected to vest |  |  | 10,650 |  |  |  | 18.71 |  |  |  | 4 years |  |  |  | 8,666 |  |  |  |  |
Assumptions Used to Value Options |
Year Ended April 30, |  | 2011 |  |  | 2010 |  |  | 2009 |  |  |  |
Options – management and director: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected volatility |  |  | 28.98% - 30.20% |  |  |  | 27.11% - 27.27% |  |  |  | 23.41% - 25.20% |  |  |  |  |
Expected term |  |  | 5 years |  |  |  | 5 years |  |  |  | 4years |  |  |  |  |
Dividend yield |  |  | 4.18% - 5.17% |  |  |  | 3.24% - 3.55% |  |  |  | 2.35% - 3.04% |  |  |  |  |
Risk-free interest rate |  |  | 1.26% - 1.92% |  |  |  | 2.38% - 2.75% |  |  |  | 2.54% - 3.26% |  |  |  |  |
Weighted-average fair value |  | $ | 2.25 |  |  | $ | 3.27 |  |  | $ | 3.80 |  |  |  |  |
Options – seasonal:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected volatility |  |  |  |  |  |  | 33.81% |  |  |  | 25.35% |  |  |  |  |
Expected term |  |  |  |  |  |  | 2 years |  |  |  | 2 years |  |  |  |  |
Dividend yield |  |  |  |  |  |  | 3.48% |  |  |  | 2.80% |  |  |  |  |
Risk-free interest rate |  |  |  |  |  |  | 0.85% |  |  |  | 2.54% |  |  |  |  |
Weighted-average fair value |  |  |  |  |  | $ | 2.70 |  |  | $ | 2.83 |  |  |  |  |
ESPP options: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected volatility |  |  | 22.75% - 23.31% |  |  |  | 23.68% - 43.20% |  |  |  | 29.13% - 43.82% |  |  |  |  |
Expected term |  |  | 0.5years |  |  |  | 0.5 years |  |  |  | 0.5 years |  |  |  |  |
Dividend yield |  |  | 3.86% - 4.80% |  |  |  | 2.65% - 3.46% |  |  |  | 2.67% - 2.78% |  |  |  |  |
Risk-free interest rate |  |  | 0.19% - 0.23% |  |  |  | 0.20% - 0.33% |  |  |  | 0.27% - 2.13% |  |  |  |  |
Weighted-average fair value |  | $ | 2.16 |  |  | $ | 3.66 |  |  | $ | 4.38 |  |  |  |  |
(1) | This plan was terminated in fiscal year 2010, except for outstanding awards thereunder.
Summary of Nonvested Shares and Performance Nonvested Share Units |
|  | (shares in 000s) |  |  |  |
|  |  |  |  | Weighted-Average |  |  |  |
|  |  |  |  | Grant Date |  |  |  |
|  | Shares |  |  | Fair Value |  |  |  |
Outstanding, beginning of the year |  |  | 1,619 |  |  | $ | 19.55 |  |  |  |  |
Granted |  |  | 745 |  |  |  | 12.56 |  |  |  |  |
Released |  |  | (632 | ) |  |  | 20.20 |  |  |  |  |
Forfeited |  |  | (232 | ) |  |  | 17.61 |  |  |  |  |
Outstanding, end of the year |  |  | 1,500 |  |  | $ | 15.92 |  |  |  |  |

X
- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ShareBasedCompensationAbstract
Namespace Prefix: | us-gaap
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration