Accounts receivable and unbilled, related parties, current.

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Contract with customer, liability, current with related parties.

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Lease expiration month and year.

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Lease expiration year.

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Lease occupancy year.

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Lease Term Reassessment Description

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Number of buildings.

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Number of lease agreements.

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Number of lease renewal options.

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Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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For an unclassified balance sheet, amounts due from an Entity employee, not to include stockholders or officers.

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Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of lessee's right to use underlying asset under operating lease.

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Expenses incurred for travel and entertainment during the period.

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Related Party Transactions - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Building RenewalOption Agreement	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Related Party Transaction [Line Items]
Advanced billings	$ 12,000		$ 12,000		$ 8,300
Accounts receivable and unbilled, net	6,600		6,600		2,700
Operating lease cost recognized	6,375	$ 5,817	12,875	$ 11,547
Operating lease right-of-use assets	135,389		135,389		129,558
Current portion of lease liability	18,770		18,770		16,276
Long-term portion of lease liabilities	134,977		134,977		130,965
Accounts payable	300		300		300
Employee Loans \| Prepaid Expenses and Other Current Assets and Other Assets
Related Party Transaction [Line Items]
Employee advances receivables	300		300		200
Service Agreement \| LIB
Related Party Transaction [Line Items]
Advanced billings	3,500		3,500		2,900
Accounts receivable and unbilled, net	4,200		4,200		500
Service Agreement \| LIB \| Revenue Net
Related Party Transaction [Line Items]
Revenue with related parties	9,700	2,800	17,100	3,300
Service Agreement \| CinRx Pharma and Subsidiaries
Related Party Transaction [Line Items]
Advanced billings	8,500		8,500		5,400
Accounts receivable and unbilled, net	2,400		2,400		2,100
Service Agreement \| CinRx Pharma and Subsidiaries \| Revenue Net
Related Party Transaction [Line Items]
Revenue with related parties	7,500	7,100	13,300	11,900
Service Agreement \| The Summit
Related Party Transaction [Line Items]
Expenses incurred			$ 100	100
Service Agreement \| The Summit \| Maximum
Related Party Transaction [Line Items]
Expenses incurred	$ 100	100
Leased Real Estate \| Chief Executive Officer
Related Party Transaction [Line Items]
Term of lease	12 years		12 years
Lease expiration period			2022-11
Number of lease renewal, 10-year option \| RenewalOption			1
Lease term upon renewal	10 years		10 years
Lease term reassessment Description			In Q3 2021, the Company accounted for the renewal option, as it became reasonably certain it would be exercised per the agreement, by extending the lease term through November 2032.
Leased Real Estate \| Chief Executive Officer \| Direct Costs and Selling, General And Administrative
Related Party Transaction [Line Items]
Operating lease cost recognized	$ 500	500	$ 1,100	1,000
Leased Real Estate \| Chief Executive Officer And Immediate Family \| Office Space
Related Party Transaction [Line Items]
Number of lease renewal, 10-year option \| RenewalOption			2
Lease term upon renewal	10 years		10 years
Lease expiration year			2040
Leased Real Estate \| Chief Executive Officer And Immediate Family \| Building
Related Party Transaction [Line Items]
Number of lease renewal, 10-year option \| RenewalOption			1
Lease term upon renewal	10 years		10 years
Lease expiration year			2027
Number of lease agreements \| Agreement			2
Number of buildings \| Building			2
Lease occupancy year			2012
Leased Real Estate \| Chief Executive Officer And Immediate Family \| Direct Costs and Selling, General And Administrative \| Office Space
Related Party Transaction [Line Items]
Operating lease cost recognized	$ 1,400	1,400	$ 2,800	2,800
Leased Real Estate \| Chief Executive Officer And Immediate Family \| Direct Costs and Selling, General And Administrative \| Building
Related Party Transaction [Line Items]
Operating lease cost recognized	900	900	1,800	1,800
Leased Real Estate \| Operating Lease Right-of-Use Assets \| Chief Executive Officer
Related Party Transaction [Line Items]
Operating lease right-of-use assets	19,000		19,000		19,700
Leased Real Estate \| Operating Lease Right-of-Use Assets \| Chief Executive Officer And Immediate Family \| Office Space
Related Party Transaction [Line Items]
Operating lease right-of-use assets	54,300		54,300		55,100
Leased Real Estate \| Operating Lease Right-of-Use Assets \| Chief Executive Officer And Immediate Family \| Building
Related Party Transaction [Line Items]
Operating lease right-of-use assets	15,900		15,900		17,200
Leased Real Estate \| Other Current Liabilities \| Chief Executive Officer
Related Party Transaction [Line Items]
Current portion of lease liability	1,500		1,500		1,500
Leased Real Estate \| Other Current Liabilities \| Chief Executive Officer And Immediate Family \| Office Space
Related Party Transaction [Line Items]
Current portion of lease liability	1,000		1,000		900
Leased Real Estate \| Other Current Liabilities \| Chief Executive Officer And Immediate Family \| Building
Related Party Transaction [Line Items]
Current portion of lease liability	2,700		2,700		2,600
Leased Real Estate \| Operating Lease Liabilities \| Chief Executive Officer
Related Party Transaction [Line Items]
Long-term portion of lease liabilities	17,500		17,500		18,300
Leased Real Estate \| Operating Lease Liabilities \| Chief Executive Officer And Immediate Family \| Office Space
Related Party Transaction [Line Items]
Long-term portion of lease liabilities	65,400		65,400		65,900
Leased Real Estate \| Operating Lease Liabilities \| Chief Executive Officer And Immediate Family \| Building
Related Party Transaction [Line Items]
Long-term portion of lease liabilities	13,300		13,300		14,600
Travel Services
Related Party Transaction [Line Items]
Accounts payable	200		200		$ 200
Travel Services \| Chief Executive Officer
Related Party Transaction [Line Items]
Travel expenses with related party	$ 600	$ 400	$ 1,000	$ 500