FAIR VALUE MEASUREMENT (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis:

	Fair Value Hierarchy	March 31, 2020		December 31, 2019
Assets:
Money market funds	Level I	$	148,922	$	563,704
Investment securities pledged as collateral	Level I	1,476,801		1,931,697
Prepaid forward contracts	Level II	378,001		25,207
Interest rate swap contracts	Level II	372		—
Liabilities:
Prepaid forward contracts	Level II	7,728		94,795
Interest rate swap contracts	Level II	284,561		161,340
Contingent consideration related to 2017 and 2018 acquisitions	Level III	2,250		7,250

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments

The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized as follows:

		March 31, 2020				December 31, 2019
	Fair Value Hierarchy	Carrying Amount (a)		Estimated Fair Value		Carrying Amount (a)		Estimated Fair Value
Credit facility debt	Level II	$	7,139,133	$	7,179,750	$	7,148,287	$	7,190,438
Collateralized indebtedness	Level II	1,593,073		1,689,819		1,585,088		1,611,095
Senior guaranteed notes	Level II	7,604,509		7,943,752		7,602,456		8,220,518
Senior notes	Level II	7,884,080		8,253,080		7,874,040		8,728,870
Notes payable and supply chain financing	Level II	135,146		136,072		140,994		141,713
		$	24,355,941	$	25,202,473	$	24,350,865	$	25,892,634

(a)Amounts are net of unamortized deferred financing costs and discounts/premiums.