XML 125 R110.htm IDEA: XBRL DOCUMENT ﻿
v2.3.0.11

Common Stock Data (Sales Price Of Common Stock Reported By New York Stock Exchange) (Details) (USD $) | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2010 | Sep. 30, 2010
--- | --- | --- | --- | --- | --- | --- | --- | ---
High [Member] |  |  |  |  |  |  |  |
Sales price of common stock | $ 64.40 | $ 62.75 | $ 54.11 | $ 48.70 | $ 51.93 | $ 52.92 | $ 49.92 | $ 48.85
Low [Member] |  |  |  |  |  |  |  |
Sales price of common stock | $ 58.15 | $ 50.91 | $ 43.61 | $ 40.00 | $ 41.44 | $ 45.36 | $ 44.65 | $ 42.00

X
- Definition The dollar amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section H + Details
Name: | us-gaap_SaleOfStockPricePerShare
Namespace Prefix: | us-gaap
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant