Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Aug. 09, 2021
Entity Listings [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Document Transition Report	false
Entity File Number	001-36099
Entity Registrant Name	CHERRY HILL MORTGAGE INVESTMENT CORPORATION
Entity Central Index Key	0001571776
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	46-1315605
Entity Address, Address Line One	1451 Route 34, Suite 303
Entity Address, City or Town	Farmingdale
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07727
City Area Code	877
Local Phone Number	870 – 7005
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		17,113,450
Common Stock [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	CHMI
Security Exchange Name	NYSE
Series A Preferred Stock [Member]
Entity Listings [Line Items]
Title of 12(b) Security	8.20% Series A Cumulative Redeemable Preferred Stock, $0.01 par value per share
Trading Symbol	CHMI-PRA
Security Exchange Name	NYSE
Series B Preferred Stock [Member]
Entity Listings [Line Items]
Title of 12(b) Security	8.250% Series B Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock, $0.01 par value per share
Trading Symbol	CHMI-PRB
Security Exchange Name	NYSE