Summary of significant accounting policies Recent Accounting Pronouncements (Tables)

9 Months Ended

Sep. 30, 2017

Revenues subject to new revenue recognition adoption

In May 2014, the FASB issued an ASU on recognition of revenue arising from contracts with customers, as well as recognizing gains and losses from the transfer of nonfinancial assets in contracts with noncustomers, and subsequently, it issued additional guidance that further clarified the ASU. The revenue recognition ASU has implications for all revenues, excluding those that are under the specific scope of other accounting standards, such as revenue associated with leases (described above) and financial instruments (described below). Our revenues and gains for the nine months ended September 30, 2017, which will become subject to the revenue recognition ASU upon adoption on January 1, 2018, were as follows (in thousands):



	Nine Months Ended September 30, 2017
Parking and other revenue	$	32,323
Gain on sales of real estate	$	381

Summary of new ASUs adoption

In February 2016, the FASB issued an ASU that sets out new lease accounting standards for both lessees and lessors. In May 2014, the FASB issued an ASU that will require a new model for recognition of revenue arising from contracts with customers, as well as recognizing gains and losses from the transfer of nonfinancial assets in contracts with noncustomers. In January 2016, the FASB issued an ASU that amended the accounting for equity investments. These three ASUs will update the current accounting standards for all of our revenues with the exception of revenues subject to other accounting standards as noted in the table below. Our revenues and gains on sales of real estate for the nine months ended September 30, 2017, and the related effective date for adoption of new ASUs, consisted of the following (in thousands):



	Date of ASU Adoption	Nine Months Ended September 30, 2017
Revenues subject to the new lease ASU:
Rental revenues	1/1/19	$	604,570
Tenant recoveries ⁽¹⁾	1/1/19	188,874
				$	793,444

Revenues subject to the new revenue recognition ASU:
Parking and other revenues	1/1/18			32,323

Revenues not subject to the new lease or revenue recognition ASUs:
Investment income subject to the new financial instruments ASU	1/1/18	$	2,007
Interest and other income within the scope of other existing accounting standards	N/A	1,532
				3,539

Total revenues				$	829,306

Gains on sales of real estate subject to the new revenue recognition ASU	1/1/18			$	381


(1)	Includes a portion of tenant recoveries that is subject to the new revenue recognition ASU upon adoption of the new lease ASU on January 1, 2019. See further discussion below.

Investment subject to new financial instrument ASU

As of September 30, 2017, our consolidated balance sheet contained the following amounts related to our investments (in thousands):



	Cost		Net Unrealized Gains		Total
Available-for-sale equity securities	$	55,433	$	45,189	$	100,622
Investments accounted for under cost method:
Investments in limited partnerships	136,044		N/A		136,044
Investments in other privately held entities	248,596		N/A		248,596
Total investments	$	440,073	$	45,189	$	485,262

Investment effect in financial statements

For the nine months ended September 30, 2017, our consolidated statement of income and statement of comprehensive income contained the following amounts related to our investments (in thousands):



	Nine Months Ended September 30, 2017
Investment income recognized in net income	$	2,007
Unrealized gain recognized in other comprehensive income (component of stockholder’s equity)	$	23,414