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Number of wholly owned subsidiaries entered into agreement.

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Amount of payables due to related companies by means of direct or indirect ownership. 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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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of transactions with related party during the financial reporting period.

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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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Price of a single share of a number of saleable stocks of a company.

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Number of new stock issued during the period.

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Amount of sublease income excluding finance and operating lease expense.

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Related Party Transactions - Transactions (Details) $ / shares in Units, $ in Thousands		3 Months Ended
	Apr. 21, 2020 USD ($) $ / shares shares	Mar. 31, 2020 USD ($) subsidiary	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Related Party Transactions
Lease liabilities		$ 40,198
Number of wholly owned subsidiaries \| subsidiary		2
Number of minority owned subsidiaries \| subsidiary		1
Purchaser \| Series A Convertible Preferred Stock \| Subsequent Event
Related Party Transactions
Number of shares issued \| shares	152,250
515 Broadhollow, LLC
Related Party Transactions
Lease liabilities		$ 3,900		$ 4,100
Sublease Income		100	$ 100
Commission Expense
Related Party Transactions
Expenses with related parties		4,400
Sale of Equipment and Services
Related Party Transactions
Revenue from related parties		100	100
MDP \| Subsequent Event
Related Party Transactions
Reimbursement of expenses	$ 800
MDP \| Purchaser \| Series A Convertible Preferred Stock \| Subsequent Event
Related Party Transactions
Price per share \| $ / shares	$ 985.221685
Minority held affiliates
Related Party Transactions
Liabilities to related companies		2,800		5,500
Lease liabilities		300		300
Unconsolidated investees
Related Party Transactions
Liabilities to related companies		$ 1,300		$ 1,800
Blueapple \| Treasury, Payroll, Tax Preparation and Other Services \| Maximum
Related Party Transactions
Expenses with related parties			100
Relative of Chairman
Related Party Transactions
Expenses with related parties			100
NFP
Related Party Transactions
Expenses with related parties			$ 100