CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Total revenues	$ 249,404	$ 242,131
Operating expenses (income):
Third-party development and management services	6,207	4,186
General and administrative	10,158	7,315
Depreciation and amortization	66,169	68,755
Ground/facility leases	4,069	3,549
Gain from disposition of real estate	(48,525)	0
Provision for impairment	0	3,201
Total operating expenses	133,918	183,132
Operating income	115,486	58,999
Nonoperating income (expenses):
Interest income	851	926
Interest expense	(27,783)	(27,061)
Amortization of deferred financing costs	(1,287)	(1,132)
Loss from early extinguishment of debt	(4,827)	0
Total nonoperating expenses	(33,046)	(27,267)
Income before income taxes	82,440	31,732
Income tax provision	(379)	(364)
Net income	82,061	31,368
Net income attributable to noncontrolling interests – partially owned properties	(1,206)	(1,728)
Net income attributable to ACC, Inc. and Subsidiaries common stockholders	80,855	29,640
Other comprehensive loss
Change in fair value of interest rate swaps and other	(9,801)	(5,794)
Comprehensive income	$ 71,054	$ 23,846
Net income per share attributable to ACC, Inc. and Subsidiaries common shareholders
Basic and diluted (in dollars per share)	$ 0.58	$ 0.21
Weighted-average common shares outstanding:
Basic (in shares)	137,477,169	137,101,535
Diluted (in shares)	138,587,513	138,152,378
Owned properties
Revenues:
Owned properties and on-campus participating properties revenue	$ 232,091	$ 224,419
Operating expenses (income):
Operating expenses	92,474	92,169
On-campus participating properties
Revenues:
Owned properties and on-campus participating properties revenue	10,709	11,448
Operating expenses (income):
Operating expenses	3,366	3,957
AMERICAN CAMPUS COMMUNITIES OPERATING PARTNERSHIP LP
Revenues:
Total revenues	249,404	242,131
Operating expenses (income):
Third-party development and management services	6,207	4,186
General and administrative	10,158	7,315
Depreciation and amortization	66,169	68,755
Ground/facility leases	4,069	3,549
Gain from disposition of real estate	(48,525)	0
Provision for impairment	0	3,201
Total operating expenses	133,918	183,132
Operating income	115,486	58,999
Nonoperating income (expenses):
Interest income	851	926
Interest expense	(27,783)	(27,061)
Amortization of deferred financing costs	(1,287)	(1,132)
Loss from early extinguishment of debt	(4,827)	0
Total nonoperating expenses	(33,046)	(27,267)
Income before income taxes	82,440	31,732
Income tax provision	(379)	(364)
Net income	82,061	31,368
Net income attributable to ACC, Inc. and Subsidiaries common stockholders	81,145	29,800
Series A preferred unit distributions	(14)	(31)
Net income attributable to common unitholders	81,131	29,769
Other comprehensive loss
Change in fair value of interest rate swaps and other	(9,801)	(5,794)
Comprehensive income	$ 71,330	$ 23,975
Net Income (Loss), Per Outstanding Limited Partnership and General Partnership Unit, Basic, Net of Tax	$ 0.58	$ 0.21
Net income per unit attributable to common unitholders
Basic and diluted (in dollars per share)	$ 0.58	$ 0.21
Weighted-average common units outstanding
Basic (in units)	137,945,644	137,696,323
Diluted (in units)	139,055,988	138,747,166
AMERICAN CAMPUS COMMUNITIES OPERATING PARTNERSHIP LP | Owned properties
Revenues:
Owned properties and on-campus participating properties revenue	$ 232,091	$ 224,419
Operating expenses (income):
Operating expenses	92,474	92,169
AMERICAN CAMPUS COMMUNITIES OPERATING PARTNERSHIP LP | On-campus participating properties
Revenues:
Owned properties and on-campus participating properties revenue	10,709	11,448
Operating expenses (income):
Operating expenses	3,366	3,957
AMERICAN CAMPUS COMMUNITIES OPERATING PARTNERSHIP LP | Noncontrolling interests - partially owned properties
Nonoperating income (expenses):
Net income attributable to noncontrolling interests – partially owned properties	(916)	(1,568)
Third-party development services
Revenues:
Contract with customer, revenue	2,055	3,171
Third-party development services | AMERICAN CAMPUS COMMUNITIES OPERATING PARTNERSHIP LP
Revenues:
Contract with customer, revenue	2,055	3,171
Third-party management services
Revenues:
Contract with customer, revenue	3,829	2,311
Third-party management services | AMERICAN CAMPUS COMMUNITIES OPERATING PARTNERSHIP LP
Revenues:
Contract with customer, revenue	3,829	2,311
Resident services
Revenues:
Contract with customer, revenue	720	782
Resident services | AMERICAN CAMPUS COMMUNITIES OPERATING PARTNERSHIP LP
Revenues:
Contract with customer, revenue	$ 720	$ 782