PA Consulting Business Combination - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Oct. 01, 2021	Mar. 02, 2021
Assets
Goodwill	$ 7,492,015	$ 7,197,000
PA Consulting Group Limited
Assets
Cash and cash equivalents			$ 134,900
Receivables			166,500
Property, equipment and improvements, net			40,500
Goodwill			1,454,300
Identifiable intangible assets			1,004,200
Prepaid expenses and other current assets			9,500
Miscellaneous long term assets			84,000
Total Assets			2,893,900
Liabilities
Accounts payable, accrued expenses and other current liabilities			6,500
Accrued liabilities and other current liabilities			355,100
Other long term liabilities			248,000
Total Liabilities			609,600
Redeemable Noncontrolling interests			582,400
Net assets acquired			$ 1,701,900