XML 48 R10.htm IDEA: XBRL DOCUMENT v2.4.0.6

Earnings Per Share

3 Months Ended

Mar. 31, 2012

Notes to Financial Statements [Abstract]

Earnings Per Share

3.   Earnings Per Share

Basic earnings per share were calculated using net earnings and the weighted average number of shares of common stock outstanding during the respective period. Diluted earnings per share were calculated using net earnings and the weighted average number of shares of common stock and potential common stock outstanding during the respective period. Potentially dilutive common stock consisted of stock options and the premium over the conversion price on Roper's senior subordinated convertible notes based upon the trading price of Roper's common stock. The effects of potential common stock were determined using the treasury stock method.  Weighted average shares outstanding are as shown below (in thousands):

		Three months ended March 31,
		2012		2011
Basic shares outstanding		97,039		95,374
Effect of potential common stock
Common stock awards		1,140		1,305
Senior subordinated convertible notes		1,128		1,474
Diluted shares outstanding		99,307		98,153

As of March 31, 2012 there were 454,165 outstanding stock options that were not included in the determination of diluted earnings per share because doing so would have been antidilutive, as compared to 662,000 outstanding stock options that would have been antidilutive on March 31, 2011.

X

- Details

Name:	rop_NotesToFinancialStatementsAbstract
Namespace Prefix:	rop_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This element may be used to capture the complete disclosure pertaining to an entity's earnings per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 40

+ Details

Name:	us-gaap_EarningsPerShareTextBlock
Namespace Prefix:	us-gaap_
Data Type:	us-types:textBlockItemType
Balance Type:	na
Period Type:	duration