Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2017

Derivative Financial Instruments

Schedule of fair value of derivative financial instruments, excluding derivative financial instruments held in certain consolidated sponsored funds

			June 30,	December 31,
			2017	2016
	Balance sheet
	location	Fair value		Fair value
		(in thousands)
Total return swap contracts	Other assets,  (Other current liabilities)	$	884	(475)

Schedule of net losses recognized in income of derivative financial instrument

		Three months ended			Six months ended
	Income statement	June 30,			June 30,
	location		2017	2016		2017	2016
		(in thousands)			(in thousands)
Total return swap contracts	Investment and other (loss)	$	(7,421)	(6,707)		(18,466)	(21,929)