Business Combinations, Goodwill and Acquired Intangible Assets	3 Months Ended
Mar. 31, 2019
Business Combinations and Investments, Goodwill and Acquired Intangible Assets [Abstract]
Business Combinations, Goodwill and Acquired Intangible Assets	Business Combinations, Goodwill and Acquired Intangible Assets Acquisition of the scientific imaging businesses of Roper Technologies, Inc. On February 5, 2019, we acquired the scientific imaging businesses of Roper Technologies, Inc. for $225.0 million in cash, subject to a working capital purchase price adjustment. Principally located in the United States and Canada, the acquired businesses are part of the Digital Imaging segment. The acquired businesses include Princeton Instruments, Photometrics and Lumenera. The acquired businesses provide a range of imaging solutions, primarily for life sciences, academic research and customized OEM industrial imaging solutions. Princeton Instruments and Photometrics manufacture state-of-the-art cameras, spectrographs and optics for advanced research in physical sciences, life sciences research and spectroscopy imaging. Applications and markets include materials analysis, quantum technology and cell biology imaging using fluorescence and chemiluminescence. Lumenera primarily provides rugged USB-based customized cameras for markets such as traffic management, as well as life sciences applications. Teledyne funded the acquisition with borrowings under its credit facility and cash on hand. The results of the acquisition have been included in Teledyne’s results since the date of the acquisition. Goodwill and Acquired Intangible Assets Teledyne’s goodwill was $1,885.1 million at March 31, 2019 and $1,735.2 million at December 30, 2018. The increase in the balance of goodwill in 2019 resulted from $145.4 million in goodwill from the acquisition of the scientific imaging businesses of Roper Technologies, Inc. Teledyne’s net acquired intangible assets were $389.0 million at March 31, 2019 and $344.3 million at December 30, 2018. The increase in the balance of net acquired intangible assets resulted from $52.4 million in acquired intangible assets from the acquisition of the scientific imaging businesses of Roper Technologies, Inc., partially offset by amortization of acquired intangible assets. The Company is in the process of specifically identifying the amount to be assigned to certain assets, including acquired intangible assets, and liabilities and the related impact on taxes and goodwill for the acquisition of the scientific imaging businesses of Roper Technologies, Inc. since there was insufficient time between the acquisition date and the end of the period to finalize the analysis.

Business Combinations, Goodwill and Acquired Intangible Assets

Acquisition of the scientific imaging businesses of Roper Technologies, Inc.

On February 5, 2019, we acquired the scientific imaging businesses of Roper Technologies, Inc. for $225.0 million in cash, subject to a working capital purchase price adjustment. Principally located in the United States and Canada, the acquired businesses are part of the Digital Imaging segment. The acquired businesses include Princeton Instruments, Photometrics and Lumenera. The acquired businesses provide a range of imaging solutions, primarily for life sciences, academic research and customized OEM industrial imaging solutions. Princeton Instruments and Photometrics manufacture state-of-the-art cameras, spectrographs and optics for advanced research in physical sciences, life sciences research and spectroscopy imaging. Applications and markets include materials analysis, quantum technology and cell biology imaging using fluorescence and chemiluminescence. Lumenera primarily provides rugged USB-based customized cameras for markets such as traffic management, as well as life sciences applications. Teledyne funded the acquisition with borrowings under its credit facility and cash on hand. The results of the acquisition have been included in Teledyne’s results since the date of the acquisition.

Goodwill and Acquired Intangible Assets

Teledyne’s goodwill was $1,885.1 million at March 31, 2019 and $1,735.2 million at December 30, 2018. The increase in the balance of goodwill in 2019 resulted from $145.4 million in goodwill from the acquisition of the scientific imaging businesses of Roper Technologies, Inc. Teledyne’s net acquired intangible assets were $389.0 million at March 31, 2019 and $344.3 million at December 30, 2018. The increase in the balance of net acquired intangible assets resulted from $52.4 million in acquired intangible assets from the acquisition of the scientific imaging businesses of Roper Technologies, Inc., partially offset by amortization of acquired intangible assets. The Company is in the process of specifically identifying the amount to be assigned to certain assets, including acquired intangible assets, and liabilities and the related impact on taxes and goodwill for the acquisition of the scientific imaging businesses of Roper Technologies, Inc. since there was insufficient time between the acquisition date and the end of the period to finalize the analysis.