XML 25 R22.htm IDEA: XBRL DOCUMENT v2.4.0.6

Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Notes to Financial Statements [Abstract]

Stock Based Compensation Expense

	Three months ended March 31,
	2013	2012
Stock based compensation	$  12,977	$  9,954
Tax effect recognized in net income	4,542	3,484
Windfall tax benefit, net	4,312	7,415

Weighted average assumptions used to value option grants

	Three months ended March 31,
	2013		2012
Fair value per share ($)	36.53		29.65
Risk-free interest rate (%)	0.80		0.82
Expected option life (years)	5.18		5.22
Expected volatility (%)	36.29		36.56
Expected dividend yield (%)	0.57		0.59

X

- Definition

Disclosure of compensation-related costs for share-based compensation which may include disclosure of policies, compensation plan details, allocation of stock compensation, incentive distributions, share-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

No definition available.

+ Details

Name:	rop_DisclosureOfCompensationRelatedCostShareBasedPaymentsTextBlock
Namespace Prefix:	rop_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Definition

This table provides the weighted average assumptions used to estimate the fair value of options granted during the current and prior periods using the Black-Scholes Option pricing model.

+ References

No definition available.

+ Details

Name:	rop_ScheduleOfWeightedAverageAssumptionsUsedToValueOptionsTextBlock
Namespace Prefix:	rop_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration