The following table sets forth the details of interest and other income (loss).

	For the Three Months Ended September 30,					For the Nine Months Ended September 30,
(Amounts in thousands)	2018		2017			2018		2017
Preferred equity investment income⁽¹⁾	$	930	$	961		$	2,746	$	3,327
Interest and other income		858		147			2,862		743
Mark-to-market of investments in our deferred compensation plans ⁽²⁾		990		812			1,280		3,536
Valuation allowance on preferred equity investment ⁽³⁾		-		(19,588	)		-		(19,588	)
Total interest and other income (loss), net	$	2,778	$	(17,668	)	$	6,888	$	(11,982	)

⁽¹⁾

Represents income from our preferred equity investments in PGRESS Equity Holdings L.P., of which our 24.4% share is $227 and $243 for the three months ended September 30, 2018 and 2017, respectively, and $669 and $819 for the nine months ended September 30, 2018 and 2017, respectively. See Note 7, Preferred Equity Investments.

⁽²⁾

The change resulting from the mark-to-market of the deferred compensation plan assets is entirely offset by the change in deferred compensation plan liabilities, which is included as a component of “general and administrative” expenses on our consolidated statements of income.

⁽³⁾

Represents the valuation allowance on 2 Herald Square, our preferred equity investment in PGRESS Equity Holdings L.P., of which our 24.4% share was $4,780, and $14,808 was attributable to noncontrolling interests. In May 2018, the senior lender foreclosed out our interests and accordingly, we wrote off our preferred equity investment.