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Repositioning Liabilities	3 Months Ended
Repositioning Liabilities	Mar. 31, 2019
Repositioning Liabilities [Abstract]
Repositioning Liabilities	Repositioning Liabilities At March 31, 2019 and December 31, 2018, the liability for incremental severance and office lease consolidation and termination incurred in connection with our repositioning actions taken in the third quarter of 2018 was $62.1 million and $78.9 million, respectively. We expect that substantially all the liabilities will paid by the end of 2019.