PRO FORMA FINANCIAL INFORMATION (UNAUDITED) - Summary of Pro Forma Information (Details) - Care Capital Properties $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) $ / shares shares
Business Acquisition, Pro Forma Information [Abstract]
Revenues | $	$ 631,041
Net income attributable to common stockholders | $	$ 292,551
Net income attributable to common stockholders, per:
Basic common share (in dollars per share) | $ / shares	$ 1.78
Diluted common share (in dollars per share) | $ / shares	$ 1.78
Weighted-average number of common shares outstanding, basic (in shares) | shares	164,361,139
Weighted-average number of common shares outstanding, diluted (in shares) | shares	164,582,331