Joint Venture	9 Months Ended
	Sep. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]
Joint Venture	Joint Venture On May 12, 2020, a subsidiary of IDEX entered into a joint venture agreement with a third party to form a limited liability company (the “Joint Venture”) that will manufacture and sell high performance elastomer seals for the oil and gas industry to customers within the Kingdom of Saudi Arabia as well as export these high performance elastomer seals outside of the Kingdom of Saudi Arabia. The Joint Venture will be headquartered in Damman, Saudi Arabia and will operate in our Sealing Solutions platform within the Health & Science Technologies segment. IDEX will contribute $0.6 million and will own 55% of the share capital while the third party partner will contribute $0.5 million and will own 45% of the share capital. As of September 30, 2020, the Joint Venture had not yet been funded or begun its operations. Since we will control the entity, we expect to consolidate the Joint Venture and record a noncontrolling interest in our financial statements once funding occurs and operations begin, both of which are currently expected to occur during the fourth quarter of 2020.