Pay vs Performance Disclosure - USD ($)

12 Months Ended

Dec. 31, 2024

Dec. 31, 2023

Dec. 31, 2022

Dec. 31, 2021

Dec. 31, 2020

Pay vs Performance Disclosure

Pay vs Performance Disclosure, Table

					Average				Value of Initial Fixed
					Summary				$100 Investment
	Summary				Compensation		Average		Based on:
	Compensation				Table Pay for		CAP to				Peer		GAAP		Operating
	Table Pay for		CAP to		Other		Other				Group		Net Income		Portfolio
Year	CEO(1)(2)		CEO(3)(4)		NEOs(1)(2)		NEOs(3)(4)		TSR(5)		TSR(5)		(Loss)(6)		NOI(6)
2024	$	9,179,792	$	6,036,270	$	2,743,847	$	1,884,362	$	47.23	$	76.95	$	(177,753)	$	287,201
2023	$	7,884,883	$	5,090,731	$	2,424,259	$	1,805,189	$	49.46	$	63.34	$	(91,709)	$	322,004
2022	$	7,884,144	$	(1,035,693)	$	2,534,133	$	388,422	$	52.69	$	62.07	$	98,986	$	339,217
2021	$	16,099,515	$	7,359,471	$	4,936,407	$	2,882,484	$	76.41	$	99.51	$	(89,725)	$	332,034
2020	$	7,396,015	$	2,097,239	$	2,193,868	$	660,294	$	80.78	$	81.56	$	(67,261)	$	301,904

(1) For each year shown, the CEO was W. Matthew Kelly. For 2024 and 2023, the other NEOs were M. Moina Banerjee, Kevin "Kai" Reynolds, George L. Xanders and Steven A. Museles. For 2022, the other NEOs were David P. Paul, M. Moina Banerjee, Kevin "Kai" Reynolds and George L. Xanders. For 2021, the other NEOs were David P. Paul, M. Moina Banerjee, Kevin "Kai" Reynolds and Steven A. Museles. For 2020, the other NEOs were David P. Paul, Stephen W. Theriot, Kevin "Kai" Reynolds and M. Moina Banerjee.

(2) The values reflected in this column reflect the "Total" compensation set forth in the SCT on page 65. See the footnotes to the SCT for further detail regarding the amounts in this column.

(3) Compensation actually paid ("CAP") is defined by the SEC and is computed in accordance with SEC rules by subtracting the amounts in the "Stock Awards" column of the SCT for each year from the "Total" column of the SCT and then: (i) adding the fair value as of the end of the reported year of all awards granted during the reporting year that are outstanding and unvested as of the end of the reporting year; (ii) adding the amount equal to the change as of the end of the reporting year (from the end of the prior year) in fair value (whether positive or negative) of any awards granted in any prior year that are outstanding and unvested as of the end of the reporting year; (iii) adding, for awards that are granted and vest in the reporting year, the fair value as of the vesting date; (iv) adding the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value (whether positive or negative) of any awards granted in any prior year for which all applicable vesting conditions were satisfied at the end of or during the reporting year; (v) subtracting, for any awards granted in any prior year that are forfeited during the reporting year, the amount equal to the fair value at the end of the prior year; and (vi) adding the value of any dividends (or dividend equivalents) paid in the reporting year on unvested equity awards and the value of accrued dividends (or dividend equivalents) paid on performance awards that vested in

the reporting year. The following tables reflect the adjustments made to SCT total compensation to compute CAP for our CEO and average CAP for our other NEOs.

CEO

							Plus
							Change in				Plus Change		Minus		Plus
					Plus		Value of		Plus		in Value		Value of		Dividends on
					Value of		Prior		Value of		of Prior		Forfeited		Unvested
	SCT		Minus		New		Years		New		Years		Prior		Awards /
	Total		SCT Equity		Unvested		Unvested		Vested		Vested		Years		Accrued		Equals
	Comp		Awards		Awards		Awards		Awards		Awards		Awards		Dividends*		CAP
2024	$	9,179,792	$	(7,495,575)	$	5,416,490	$	(1,495,896)	$	—	$	(70,770)	$	—	$	502,229	$	6,036,270
2023	$	7,884,883	$	(5,999,983)	$	5,068,621	$	(999,029)	$	—	$	(177,212)	$	(1,037,819)	$	351,270	$	5,090,731
2022	$	7,884,144	$	(5,999,994)	$	3,210,671	$	(5,736,996)	$	—	$	(840,472)	$	—	$	446,954	$	(1,035,693)
2021	$	16,099,515	$	(14,215,815)	$	11,035,582	$	(3,648,491)	$	—	$	(94,367)	$	(2,226,061)	$	409,108	$	7,359,471
2020	$	7,396,015	$	(5,999,965)	$	4,601,686	$	(2,036,456)	$	—	$	(447,038)	$	(1,684,069)	$	267,066	$	2,097,239

Other NEOs (Average)

							Plus
							Change in				Plus Change		Minus		Plus
					Plus		Value of		Plus		in Value		Value of		Dividends on
					Value of		Prior		Value of		of Prior		Forfeited		Unvested
	SCT		Minus		New		Years		New		Years		Prior		Awards /
	Total		SCT Equity		Unvested		Unvested		Vested		Vested		Years		Accrued		Equals
	Comp		Awards		Awards		Awards		Awards		Awards		Awards		Dividends*		CAP
2024	$	2,743,847	$	(1,645,006)	$	1,193,556	$	(306,941)	$	—	$	(12,436)	$	(209,393)	$	120,735	$	1,884,362
2023	$	2,424,259	$	(1,211,234)	$	1,023,217	$	(302,797)	$	—	$	(28,862)	$	(180,489)	$	81,095	$	1,805,189
2022	$	2,534,133	$	(1,212,483)	$	648,814	$	(1,467,596)	$	—	$	(218,132)	$	—	$	103,686	$	388,422
2021	$	4,936,407	$	(3,630,832)	$	2,832,680	$	(890,744)	$	—	$	(19,024)	$	(441,401)	$	95,398	$	2,882,484
2020	$	2,193,868	$	(1,143,725)	$	877,182	$	(612,985)	$	—	$	(177,355)	$	(542,502)	$	65,811	$	660,294

* Reflects the dividends calculated on unvested awards as of the record dates in the year declared.

(4) Calculated in accordance with FASB ASC Topic 718.

(5) Reflects the cumulative TSR of the Company and FTSE Nareit Equity Office Index for the year ended December 31, 2020, the two-years ended December 31, 2021, the three years ended December 31, 2022, the four years ended December 31, 2023 and the five years ended December 31, 2024, assuming a $100 investment at the closing price on December 31, 2019 and the reinvestment of all dividends.

(6) Amounts in thousands. See "2024 Executive Bonus Objectives" for the definition of NOI.

Company Selected Measure Name

Operating Portfolio NOI

Named Executive Officers, Footnote

(1) For each year shown, the CEO was W. Matthew Kelly. For 2024 and 2023, the other NEOs were M. Moina Banerjee, Kevin "Kai" Reynolds, George L. Xanders and Steven A. Museles. For 2022, the other NEOs were David P. Paul, M. Moina Banerjee, Kevin "Kai" Reynolds and George L. Xanders. For 2021, the other NEOs were David P. Paul, M. Moina Banerjee, Kevin "Kai" Reynolds and Steven A. Museles. For 2020, the other NEOs were David P. Paul, Stephen W. Theriot, Kevin "Kai" Reynolds and M. Moina Banerjee.

Peer Group Issuers, Footnote

(5) Reflects the cumulative TSR of the Company and FTSE Nareit Equity Office Index for the year ended December 31, 2020, the two-years ended December 31, 2021, the three years ended December 31, 2022, the four years ended December 31, 2023 and the five years ended December 31, 2024, assuming a $100 investment at the closing price on December 31, 2019 and the reinvestment of all dividends.

PEO Total Compensation Amount

$ 9,179,792

$ 7,884,883

$ 7,884,144

$ 16,099,515

$ 7,396,015

PEO Actually Paid Compensation Amount

$ 6,036,270

5,090,731

(1,035,693)

7,359,471

2,097,239

Adjustment To PEO Compensation, Footnote

(3) Compensation actually paid ("CAP") is defined by the SEC and is computed in accordance with SEC rules by subtracting the amounts in the "Stock Awards" column of the SCT for each year from the "Total" column of the SCT and then: (i) adding the fair value as of the end of the reported year of all awards granted during the reporting year that are outstanding and unvested as of the end of the reporting year; (ii) adding the amount equal to the change as of the end of the reporting year (from the end of the prior year) in fair value (whether positive or negative) of any awards granted in any prior year that are outstanding and unvested as of the end of the reporting year; (iii) adding, for awards that are granted and vest in the reporting year, the fair value as of the vesting date; (iv) adding the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value (whether positive or negative) of any awards granted in any prior year for which all applicable vesting conditions were satisfied at the end of or during the reporting year; (v) subtracting, for any awards granted in any prior year that are forfeited during the reporting year, the amount equal to the fair value at the end of the prior year; and (vi) adding the value of any dividends (or dividend equivalents) paid in the reporting year on unvested equity awards and the value of accrued dividends (or dividend equivalents) paid on performance awards that vested in

the reporting year. The following tables reflect the adjustments made to SCT total compensation to compute CAP for our CEO and average CAP for our other NEOs.

CEO

							Plus
							Change in				Plus Change		Minus		Plus
					Plus		Value of		Plus		in Value		Value of		Dividends on
					Value of		Prior		Value of		of Prior		Forfeited		Unvested
	SCT		Minus		New		Years		New		Years		Prior		Awards /
	Total		SCT Equity		Unvested		Unvested		Vested		Vested		Years		Accrued		Equals
	Comp		Awards		Awards		Awards		Awards		Awards		Awards		Dividends*		CAP
2024	$	9,179,792	$	(7,495,575)	$	5,416,490	$	(1,495,896)	$	—	$	(70,770)	$	—	$	502,229	$	6,036,270
2023	$	7,884,883	$	(5,999,983)	$	5,068,621	$	(999,029)	$	—	$	(177,212)	$	(1,037,819)	$	351,270	$	5,090,731
2022	$	7,884,144	$	(5,999,994)	$	3,210,671	$	(5,736,996)	$	—	$	(840,472)	$	—	$	446,954	$	(1,035,693)
2021	$	16,099,515	$	(14,215,815)	$	11,035,582	$	(3,648,491)	$	—	$	(94,367)	$	(2,226,061)	$	409,108	$	7,359,471
2020	$	7,396,015	$	(5,999,965)	$	4,601,686	$	(2,036,456)	$	—	$	(447,038)	$	(1,684,069)	$	267,066	$	2,097,239

* Reflects the dividends calculated on unvested awards as of the record dates in the year declared.

Non-PEO NEO Average Total Compensation Amount

$ 2,743,847

2,424,259

2,534,133

4,936,407

2,193,868

Non-PEO NEO Average Compensation Actually Paid Amount

$ 1,884,362

1,805,189

388,422

2,882,484

660,294

Adjustment to Non-PEO NEO Compensation Footnote

(3) Compensation actually paid ("CAP") is defined by the SEC and is computed in accordance with SEC rules by subtracting the amounts in the "Stock Awards" column of the SCT for each year from the "Total" column of the SCT and then: (i) adding the fair value as of the end of the reported year of all awards granted during the reporting year that are outstanding and unvested as of the end of the reporting year; (ii) adding the amount equal to the change as of the end of the reporting year (from the end of the prior year) in fair value (whether positive or negative) of any awards granted in any prior year that are outstanding and unvested as of the end of the reporting year; (iii) adding, for awards that are granted and vest in the reporting year, the fair value as of the vesting date; (iv) adding the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value (whether positive or negative) of any awards granted in any prior year for which all applicable vesting conditions were satisfied at the end of or during the reporting year; (v) subtracting, for any awards granted in any prior year that are forfeited during the reporting year, the amount equal to the fair value at the end of the prior year; and (vi) adding the value of any dividends (or dividend equivalents) paid in the reporting year on unvested equity awards and the value of accrued dividends (or dividend equivalents) paid on performance awards that vested in

the reporting year. The following tables reflect the adjustments made to SCT total compensation to compute CAP for our CEO and average CAP for our other NEOs.

Other NEOs (Average)

							Plus
							Change in				Plus Change		Minus		Plus
					Plus		Value of		Plus		in Value		Value of		Dividends on
					Value of		Prior		Value of		of Prior		Forfeited		Unvested
	SCT		Minus		New		Years		New		Years		Prior		Awards /
	Total		SCT Equity		Unvested		Unvested		Vested		Vested		Years		Accrued		Equals
	Comp		Awards		Awards		Awards		Awards		Awards		Awards		Dividends*		CAP
2024	$	2,743,847	$	(1,645,006)	$	1,193,556	$	(306,941)	$	—	$	(12,436)	$	(209,393)	$	120,735	$	1,884,362
2023	$	2,424,259	$	(1,211,234)	$	1,023,217	$	(302,797)	$	—	$	(28,862)	$	(180,489)	$	81,095	$	1,805,189
2022	$	2,534,133	$	(1,212,483)	$	648,814	$	(1,467,596)	$	—	$	(218,132)	$	—	$	103,686	$	388,422
2021	$	4,936,407	$	(3,630,832)	$	2,832,680	$	(890,744)	$	—	$	(19,024)	$	(441,401)	$	95,398	$	2,882,484
2020	$	2,193,868	$	(1,143,725)	$	877,182	$	(612,985)	$	—	$	(177,355)	$	(542,502)	$	65,811	$	660,294

* Reflects the dividends calculated on unvested awards as of the record dates in the year declared.

Compensation Actually Paid vs. Total Shareholder Return

Compensation Actually Paid vs. Net Income

Compensation Actually Paid vs. Company Selected Measure

Total Shareholder Return Vs Peer Group

Tabular List, Table

Financial Performance Measures.  The most important financial performance measures used by the Company in setting pay-for-performance compensation for the most recently completed fiscal year are described in the table below. The manner in which these measures, together with certain non-financial performance measures, determine the amounts of incentive compensation paid to our NEOs is described above in the section titled "Elements of Executive Compensation Program".

Most Important Financial Performance Measures

Operating Portfolio NOI

Total Shareholder Return

Capital Recycling

Leasing Volume

Development Activities

Total Shareholder Return Amount

$ 47.23

49.46

52.69

76.41

80.78

Peer Group Total Shareholder Return Amount

76.95

63.34

62.07

99.51

81.56

Net Income (Loss)

$ (177,753,000)

$ (91,709,000)

$ 98,986,000

$ (89,725,000)

$ (67,261,000)

Company Selected Measure Amount

287,201,000

322,004,000

339,217,000

332,034,000

301,904,000

PEO Name

W. Matthew Kelly

Measure:: 1

Pay vs Performance Disclosure

Name

Operating Portfolio NOI

Measure:: 2

Pay vs Performance Disclosure

Name

Total Shareholder Return

Measure:: 3

Pay vs Performance Disclosure

Name

Capital Recycling

Measure:: 4

Pay vs Performance Disclosure

Name

Leasing Volume

Measure:: 5

Pay vs Performance Disclosure

Name

Development Activities

PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ (7,495,575)

$ (5,999,983)

$ (5,999,994)

$ (14,215,815)

$ (5,999,965)

PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

5,416,490

5,068,621

3,210,671

11,035,582

4,601,686

PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(1,495,896)

(999,029)

(5,736,996)

(3,648,491)

(2,036,456)

PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(70,770)

(177,212)

(840,472)

(94,367)

(447,038)

PEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(1,037,819)

(2,226,061)

(1,684,069)

PEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

502,229

351,270

446,954

409,108

267,066

Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(1,645,006)

(1,211,234)

(1,212,483)

(3,630,832)

(1,143,725)

Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

1,193,556

1,023,217

648,814

2,832,680

877,182

Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(306,941)

(302,797)

(1,467,596)

(890,744)

(612,985)

Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(12,436)

(28,862)

(218,132)

(19,024)

(177,355)

Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(209,393)

(180,489)

(441,401)

(542,502)

Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ 120,735

$ 81,095

$ 103,686

$ 95,398

$ 65,811