INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of Investments [Abstract]

Summary of Investments in Nonconsolidated Affiliates and Available-for-sale Securities

The following table summarizes the Company's investments in nonconsolidated affiliates and available-for-sale securities:

(In thousands)	Notes Receivable			Equity Method Investments			Cost Method Investments				Marketable Equity Securities			Total Investments
Balance at December 31, 2015	$	156		$	27,710		$	58,802		2,326,000	$	2,326		$	88,994
Cash advances	—			2,993			—				—			2,993
Acquisitions	917			7,531			26,086				—			34,534
Equity in loss	—			(16,733		)	—				—			(16,733		)
Disposals	(76		)	(2,476		)	(1,000		)		—			(3,552		)
Foreign currency transaction adjustment	—			(45		)	(196		)		(35		)	(276		)
Distributions received	—			(3,709		)	—				—			(3,709		)
Impairment of investments	—			—			(14,798		)		—			(14,798		)
Unrealized holding loss on marketable securities	—			—			—				(576		)	(576		)
Other	(865		)	(794		)	2,772				—			1,113
Balance at December 31, 2016	$	132		$	14,477		$	71,666			$	1,715		$	87,990
Cash advances	—			2,248			—				—			2,248
Acquisitions	13,602			10,361			11,560				—			35,523
Equity in loss	—			(2,855		)	—				—			(2,855		)
Disposals	(188		)	—			(628		)		—			(816		)
Foreign currency transaction adjustment	—			145			380				243			768
Distributions received	—			(775		)	—				—			(775		)
Impairment of investments	(671		)	—			(4,202		)		—			(4,873		)
Unrealized holding loss on marketable securities	—			—			—				(414		)	(414		)
Other	917			794			—				—			1,711
Balance at December 31, 2017	$	13,792		$	24,395		$	78,776			$	1,544		$	118,507