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Inventories

12 Months Ended

Dec. 31, 2011

Inventories [Abstract]

Inventories [Text Block]

(3)   Inventories

The components of inventories at December 31 were as follows (in thousands):

		2011			2010
Raw materials and supplies		$	119,550		$	113,415
Work in process			31,085			26,358
Finished products			89,334			71,302
Inventory reserves			(35,211	)		(32,516	)
		$	204,758		$	178,559

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- Definition

This element represents the complete disclosure related to inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income.

+ References

No definition available.

+ Details

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Namespace Prefix:	rop_
Data Type:	us-types:textBlockItemType
Balance Type:	na
Period Type:	duration

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- Details

Name:	rop_InventoriesAbstract
Namespace Prefix:	rop_
Data Type:	xbrli:stringItemType
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Period Type:	duration