XML 20 R70.htm IDEA: XBRL DOCUMENT

Summarized Financial Information of Unconsolidated Joint Ventures (Additional Information) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014 joint_venture	Dec. 31, 2013	Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]
Number of joint ventures that are 50% owned	2rog_NumberOfJointVentures
Equity income in unconsolidated joint ventures	$ 4,123	$ 4,326	$ 4,743
Rogers INOAC Corporation [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture	50.00%
Rogers INOAC Suzhou Corporation [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture	50.00%

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References+ Details