Employee Stock Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Employee Benefits Disclosure [Line Items]
Common stock reserved and available for issuance under the Comprehensive Plan		14,000,000
Compensation expense		$ 12.0	$ 11.0	$ 22.0
Granted		2,300,000	1,800,000	2,000,000
Vested		1,200,000	800,000	1,300,000
Liability awards as a percentage of restricted stock awards granted		99.00%
Restricted Stock | Executive Officer
Employee Benefits Disclosure [Line Items]
Compensation expense		$ 10.0	$ 8.0	$ 18.0
Granted		1,600,000	1,300,000	1,500,000
Vested	[1]	600,000	400,000	800,000
Employee Stock Option
Employee Benefits Disclosure [Line Items]
Compensation expense		$ 1.5	$ 1.8	$ 1.8
Granted		596,000	366,000	393,000
Stock options outstanding		1,300,000
Stock options exercisable		1,300,000
Weighted average remaining life - outstanding		8 years
Weighted average remaining life - exercisable		8 years
Weighted average exercise price - outstanding		$ 17.78
Weighted average exercise price - exercisable		$ 17.78
Weighted average risk free rate, minimum		1.00%
Weighted average risk free rate, maximum		1.80%
Expected life		5 years 6 months
Employee Stock Option | Lower Limit
Employee Benefits Disclosure [Line Items]
Weighted average volatility		28.00%
Weighted average dividend yield		3.00%
Employee Stock Option | Upper Limit
Employee Benefits Disclosure [Line Items]
Weighted average volatility		32.00%
Weighted average dividend yield		5.00%
Other Stock Plans
Employee Benefits Disclosure [Line Items]
Compensation expense		$ 1.6	$ 1.9	$ 2.2
Granted		118,000	116,000	118,000
Vesting term		3 years
Employee stock purchase plan discount percentage		10.00%
Senior Executive Plan | Restricted Stock | Executive Officer
Employee Benefits Disclosure [Line Items]
Granted		1,600,000
Restricted stock awards		0
Payout comparison		Vesting of restricted stock awards is based on (1) the achievement of relative total shareholder return (“TSR”) and (2) the company and personal performance of employees attributable to specific management business objectives. Approximately 50% of the restricted stock awards are based on the satisfaction of the TSR compared to (i) the NAREIT index, (ii) the Standard & Poor’s index, and (iii) a Selected Lodging Company index that serves as a relevant industry/asset specific measurement to our competitors, with the remaining 50% based on the achievement of management business objectives.
Senior Executive Plan | Restricted Stock | Executive Officer | Satisfaction of total shareholder return
Employee Benefits Disclosure [Line Items]
Shares vesting percentage		50.00%
Senior Executive Plan | Restricted Stock | Executive Officer | Achievement of Management Business Objective
Employee Benefits Disclosure [Line Items]
Shares vesting percentage		50.00%
Senior Executive Plan | Employee Stock Option | Executive Officer
Employee Benefits Disclosure [Line Items]
Granted		600,000
Stock option exercise price		$ 14.26
Stock options outstanding		0

[1] Shares that vest at December 31 of each year are issued to the employees in the first quarter of the following year, although the requisite service period is complete. Accordingly, the 0.2 million shares issued in 2016 include shares vested at December 31, 2015, after adjusting for shares withheld to meet employee tax requirements. The shares withheld for employee tax requirements were valued at $2.4 million, $9.8 million and $6.1 million for 2016, 2015 and 2014, respectively.