Business and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Cash and Cash Equivalents

Below is a table presenting the beginning-of-period and end-of-period cash amounts from the Company’s Consolidated Balance Sheets and the total cash amounts presented in the Consolidated Statements of Cash Flows (in thousands).

	December 31,
	2023		2022		2021		2020
Cash and cash equivalents	$	1,318,999	$	697,999	$	756,493	$	712,583
Restricted cash classified in (1):
Prepaid expenses and other current assets	600		—		4,109		—
Other assets	—		600		—		—
Cash and cash equivalents and restricted cash per the Consolidated Statements of Cash Flows	$	1,319,599	$	698,599	$	760,602	$	712,583

(1)Restricted cash consists of escrow accounts established in connection with certain of the Company’s business acquisitions. Generally, such cash is restricted to use due to provisions contained in the underlying acquisition agreement. The Company will disburse the restricted cash to the sellers of the businesses upon satisfaction of any contingencies described in such agreements (e.g., potential indemnification claims, etc.).

Restrictions on Cash and Cash Equivalents

Below is a table presenting the beginning-of-period and end-of-period cash amounts from the Company’s Consolidated Balance Sheets and the total cash amounts presented in the Consolidated Statements of Cash Flows (in thousands).

	December 31,
	2023		2022		2021		2020
Cash and cash equivalents	$	1,318,999	$	697,999	$	756,493	$	712,583
Restricted cash classified in (1):
Prepaid expenses and other current assets	600		—		4,109		—
Other assets	—		600		—		—
Cash and cash equivalents and restricted cash per the Consolidated Statements of Cash Flows	$	1,319,599	$	698,599	$	760,602	$	712,583

(1)Restricted cash consists of escrow accounts established in connection with certain of the Company’s business acquisitions. Generally, such cash is restricted to use due to provisions contained in the underlying acquisition agreement. The Company will disburse the restricted cash to the sellers of the businesses upon satisfaction of any contingencies described in such agreements (e.g., potential indemnification claims, etc.).

Schedule of Property, Plant and Equipment

Property, equipment and leasehold improvements, net are presented in the table below (in thousands).

	Useful Life	December 31,
Category	(Years)	2023		2022
Computer equipment and software	2 - 7	$	320,136	$	258,843
Furniture and equipment	3 - 8	83,551		89,559
Leasehold improvements	2 - 15	213,205		220,509
Total cost		616,892		568,911
Less — accumulated depreciation and amortization		(354,174)		(304,330)
Property, equipment and leasehold improvements, net		$	262,718	$	264,581