Offsetting Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2018

Offsetting [Abstract]

Schedule of Offsetting of Financial Assets

Offsetting of assets as of March 31, 2018 and December 31, 2017 was as follows:

	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Condition		Net Amounts of Assets Presented in the Statement of Financial Condition		Financial Instruments			Cash Collateral Received			Net Amount
	(in thousands)
March 31, 2018:
Securities borrowed	$	48,302	$	—	$	48,302	$	(46,858	)	$	—		$	1,444
Derivatives	$	13,565	$	—	$	13,565	$	—		$	(2,364	)	$	11,201
Long exchange-traded options	$	5,395	$	—	$	5,395	$	—		$	—		$	5,395
December 31, 2017:
Securities borrowed	$	85,371	$	—	$	85,371	$	(82,353	)	$	—		$	3,018
Derivatives	$	11,619	$	—	$	11,619	$	—		$	(519	)	$	11,100
Long exchange-traded options	$	4,981	$	—	$	4,981	$	—		$	—		$	4,981

Schedule of Offsetting of Financial Liabilities

Offsetting of liabilities as of March 31, 2018 and December 31, 2017 was as follows:

	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Condition		Net Amounts of Liabilities Presented in the Statement of Financial Condition		Financial Instruments			Cash Collateral Pledged			Net Amount
	(in thousands)
March 31, 2018:
Securities loaned	$	20,500	$	—	$	20,500	$	(20,500	)	$	—		$	—
Derivatives	$	13,106	$	—	$	13,106	$	—		$	(4,724	)	$	8,382
Short exchange-traded options	$	13,966	$	—	$	13,966	$	—		$	—		$	13,966
December 31, 2017:
Securities loaned	$	37,960	$	—	$	37,960	$	(37,922	)	$	—		$	38
Derivatives	$	14,323	$	—	$	14,323	$	—		$	(8,794	)	$	5,529
Short exchange-traded options	$	13,585	$	—	$	13,585	$	—		$	—		$	13,585