Debt Facilities - Mortgage and Loans Payable (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long term debt, gross	$ 1,321,864	$ 1,370,118
Less the amount representing debt discount and debt issuance cost	(3,601)	(4,849)
Loans payable current and non current	1,320,050	1,367,037
Less current portion	(78,273)	(77,603)
Loans payable, noncurrent	1,241,777	1,289,434
Term loans
Debt Instrument [Line Items]
Long term debt, gross	1,243,882	1,287,151
Mortgage payable and other loans payable
Debt Instrument [Line Items]
Long term debt, gross	77,982	82,967
Mortgage
Debt Instrument [Line Items]
Add amount representing unamortized mortgage premium	$ 1,787	$ 1,768

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after accumulated amortization, of debt premium.

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Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer.

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Carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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