EQUITY (Details) $ / shares in Units, $ in Millions			1 Months Ended				3 Months Ended
	May 11, 2016 USD ($) shares	Nov. 04, 2013 USD ($)	May 31, 2017 $ / shares	Mar. 31, 2017 USD ($) $ / shares shares	Feb. 28, 2017 $ / shares	Jun. 30, 2009 shares	Mar. 31, 2017 USD ($) item $ / shares shares	Mar. 31, 2016 $ / shares	Dec. 31, 2016 USD ($) $ / shares shares	Nov. 30, 2016 USD ($)
Equity
Authorized shares of common stock | shares				300,000,000			300,000,000		300,000,000
Par value of common stock (in dollars per share) | $ / shares				$ 0.01			$ 0.01		$ 0.01
Shares of common stock issued | shares				133,822,999			133,822,999		133,545,864
Shares of common stock outstanding | shares				124,800,000			124,800,000		124,700,000
Shares held as treasury stock | shares				9,037,627			9,037,627		8,878,489
Authorized shares of preferred stock | shares				25,000,000			25,000,000		25,000,000
Par value of preferred stock (in dollars per share) | $ / shares				$ 0.01			$ 0.01		$ 0.01
Preferred stock, issued shares | shares				0			0		0
Preferred stock, outstanding shares | shares				0			0		0
Minimum number of series to issue preferred stock | item							1
Dividends declared per common share (in dollars per share) | $ / shares					$ 0.15		$ 0.15	$ 0.12
Cash dividend paid | $				$ 19.0
Stockholder Rights Plan
Rights per common stock share declared as dividend | shares						1
Minimum percentage of common stock to be acquired before rights become exercisable						15.00%
Percentage of discount on prevailing market price of common stock						50.00%
Equity and Share Repurchase Program
Common stock repurchased | $							$ 3.0
Cost of shares of common stock repurchased | $							3.0
Stockholders' Equity Attributable to Noncontrolling Interest | $				27.0			$ 27.0		$ 26.0
November 2016 Repurchase Program
Equity and Share Repurchase Program
Amount authorized under share repurchase program | $										$ 50.0
Number of shares of common stock repurchased | shares							159,000
Common stock repurchased | $							$ 3.0
Remaining availability for future repurchases of common stock | $				46.0			46.0		49.0
CLC
Equity and Share Repurchase Program
Premium upon exercise of share options to settle loan (as a percent)		20.00%
CLC | Convertible Secured Loan Facility
Equity and Share Repurchase Program
Convertible secured loan available, subject to certain conditions being met | $		$ 15.0
CLC | VRI Europe Limited
Equity and Share Repurchase Program
Equity of VRIE issued as consideration for acquisition (as a percent)		24.50%
Ownership interest ( as a percent)		75.50%
Stockholders' Equity Attributable to Noncontrolling Interest | $				$ 27.0			$ 27.0		$ 26.0
Period from acquisition during which parties have agreed not to transfer their interests		5 years
Vistana
Equity
Common stock issued (in shares) | shares	72,400,000
Common stock value | $	$ 1,000.0
Subsequent Event
Equity
Dividends declared per common share (in dollars per share) | $ / shares			$ 0.15