Stockholders' Equity - Additional Information (Details)	1 Months Ended		12 Months Ended
	Dec. 31, 2016 USD ($) Vote / shares $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) Vote / shares Directors $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 $ / shares shares	Dec. 31, 2013 shares	Feb. 15, 2013 USD ($)
Schedule Of Capitalization Equity [Line Items]
Preferred stock, shares authorized	100,000,000	100,000,000	100,000,000	100,000,000
Preferred stock, par value | $ / shares	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Preferred stock, shares issued	0	0	0	0
Common stock, shares authorized	1,600,000,000	1,600,000,000	1,600,000,000	1,600,000,000
Common stock, par value | $ / shares	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Percentage of directors elected by common stock holders	25.00%		25.00%
Number of directors | Directors			2
Conversion of Class B common stock			100.00%
Common stock, shares issued	134,706,467	133,836,242	134,706,467	133,836,242
Common stock, shares outstanding	131,310,980	132,443,111	131,310,980	132,443,111
Authorized the repurchase of shares of common stock | $							$ 250,000,000
Repurchase of common stock, shares	4,123,065		2,002,356	0	0
Average price of shares repurchased, common stock | $ / shares	$ 60.63		$ 52.35
Issuance of treasury stock as charitable contribution, Shares (Note 16)		801,042
Treasury stock, shares	3,395,487	1,393,131	3,395,487	1,393,131
Aggregate cost of treasury stock | $	$ 197,000,000	$ 92,000,000	$ 197,000,000	$ 92,000,000
Dividend declared on common stock | $ / shares			$ 0	$ 0	$ 0
Class B Common Stock
Schedule Of Capitalization Equity [Line Items]
Common stock, shares authorized	400,000,000	400,000,000	400,000,000	400,000,000
Common stock, par value | $ / shares	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Right to voting			10 votes per share
Vote per common stock share | Vote / shares	10		10
Common stock, shares issued	12,799,999	12,799,999	12,799,999	12,799,999
Common stock, shares outstanding	12,799,999	12,799,999	12,799,999	12,799,999	12,799,999	12,799,999
Common Stock
Schedule Of Capitalization Equity [Line Items]
Common stock, shares authorized	1,600,000,000		1,600,000,000
Common stock, par value | $ / shares	$ 0.001		$ 0.001
Right to voting			one vote per share
Vote per common stock share | Vote / shares	1		1
Common stock, shares outstanding	134,706,467	133,836,242	134,706,467	133,836,242	132,315,465	131,537,798