Restructuring Activities (Tables)

12 Months Ended

Dec. 31, 2023

Restructuring and Related Activities [Abstract]

The following table summarizes the total costs incurred in connection with the Company's restructuring activities taken during the years ended December 31, 2023 and 2022 (in millions):


	Year Ended December 31,
	2023		2022
Severance related personnel costs	$	8.9	$	40.6
Lease termination costs	21.5		7.7
Accelerated amortization of intangible assets	—		4.6
Accelerated depreciation	5.3		2.5
Other restructuring activities	—		0.8
Total expense	$	35.7	$	56.2

The total costs incurred in connection with the Company's restructuring activities during the years ended December 31, 2023 and 2022 were included in the consolidated statements of operations as follows (in millions):


	Year Ended December 31,
	2023		2022
Restructuring costs	$	30.4	$	49.1
Depreciation and amortization	5.3		7.1
Total expense	$	35.7	$	56.2

Estimated timing of future lease-related payments

The following table summarizes the estimated timing of the Company's future lease and lease-related payments, net of amounts contractually subleased, related to restructuring activities for lease termination costs as of December 31, 2023 (in millions):


	Payment Due by Period
2024	$	17.9
2025	9.4
2026	5.2
Thereafter	0.5
Total	$	33.0