(17)	Other Assets

Other current assets consisted of the following (in thousands):

	March 31,		December 31,
	2018		2017
Prepaid expenses	$	16,108	$	12,708
Derivative assets		18,437		6,676
Rent and other deposits		1,279		1,479
Other		675		131
	$	36,499	$	20,994

Non-current other assets consisted of the following (in thousands):

	March 31,		December 31,
	2018		2017
Equity method investment	$	104,718	$	101,562
Deferred tax assets^(a)		166,804		168,594
Cost method investments		13,580		6,005
Other		2,406		2,299
	$	287,508	$	278,460

(a)

Deferred tax assets and liabilities are recognized for the future tax consequences attributable to basis differences between the carrying amounts of existing assets and liabilities and their respective tax basis. Accordingly, a deferred tax asset of $108.6 million has been contributed to Newmark for the year ended December 31, 2017 for the basis difference between BPF’s net assets and its tax basis.