Partners' Capital, Equity and Incentive Compensation Plans - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	1 Months Ended	3 Months Ended
	Feb. 13, 2014	Jan. 31, 2014	Mar. 31, 2014 Class
Partners Capital And Distributions [Line Items]
Number of classes of partnership units outstanding			3
Equity based compensation expense unrecognized			$ 9.7
Equity based compensation awards intrinsic value			10.3
Aggregate distribution made to stockholders and partners		$ 9.0
Dividend paid to common stockholders		$ 0.24
Partnership distribution per unit		$ 0.24
Dividends Payable, Date Declared	Apr. 08, 2014
Cash dividend per common share	$ 0.29
Dividends Payable, Date of Record	Mar. 20, 2014
Class O Units [Member]
Partners Capital And Distributions [Line Items]
Nonvested awards outstanding			1,000,000
Class RS Units [Member]
Partners Capital And Distributions [Line Items]
Nonvested awards outstanding			100,000
Chief Executive Officer [Member]
Partners Capital And Distributions [Line Items]
Number of votes per share			50
Percentage of operating partnership unit exchanged			2.00%
Maximum [Member]
Partners Capital And Distributions [Line Items]
Equity based compensation expense vesting period			4 years
Restricted Class A Common Stock [Member]
Partners Capital And Distributions [Line Items]
Nonvested awards outstanding			200,000
Options to purchase Class A common stock [Member]
Partners Capital And Distributions [Line Items]
Nonvested awards outstanding			600,000
2013 Equity Incentive Plan [Member]
Partners Capital And Distributions [Line Items]
Authorized shares to be issued under the plan			1,750,000