The maturity date of the investment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of investments classified as other.

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OTHER INVESTMENTS (Note Due 2018-2022 Narrative) (Detail) - USD ($) $ in Thousands	1 Months Ended
	Mar. 31, 2018	May 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Schedule of Investments [Line Items]
Other investments, gross			$ 504,626	$ 276,715
Other investments			504,626	276,342
Orianna
Schedule of Investments [Line Items]
Other investments			$ 40,200
Other Investment Note Due 2018 Through 2022 [Member]
Schedule of Investments [Line Items]
Debt instrument, interest rate, stated percentage			9.91%
Other investments, gross			$ 40,242	$ 15,115
Other Investment Note Due 2018 Through 2022 [Member] \| Term Loan [Member] \| Orianna \| London Interbank Offered Rate (LIBOR) [Member]
Schedule of Investments [Line Items]
Financing receivable, face amount	$ 14,200
Other investments			14,200
Basis spread on variable interest rate	5.50%
Investment Maturity Date	Sep. 30, 2018
Other Investment Note Due 2018 Through 2022 [Member] \| Revolving Credit Facility \| Orianna \| London Interbank Offered Rate (LIBOR) [Member]
Schedule of Investments [Line Items]
Financing receivable, face amount	$ 15,800
Other investments	$ 15,800		10,800
Basis spread on variable interest rate	9.00%
Investment Maturity Date	Sep. 30, 2018
Other Investment Note Due 2018 Through 2022 [Member] \| Revolving Working Capital Loan [Member] \| Orianna
Schedule of Investments [Line Items]
Financing receivable, face amount		$ 18,800
Other investments			$ 15,200
Loans Receivable Fixed Rate		9.00%
Investment Maturity Date		Apr. 30, 2022
Loan Receivable Default Rate		5.00%