Stockholders' Equity - Additional Information (Details) $ / shares in Units, $ in Thousands		1 Months Ended	12 Months Ended
	Feb. 09, 2017 $ / shares	Feb. 09, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) vote $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2012 shares	Dec. 31, 2010 shares	Dec. 31, 2006 shares
Class of Stock [Line Items]
Preferred stock outstanding			0	0
Authorized share repurchase			70,000,000	10,000,000		20,000,000	20,000,000	20,000,000
Shares authorized and remaining under the repurchase program			7,300,000
Number of shares repurchased			3,979,170	525,504	7,040,621
Cost of stock repurchases | $			$ 436,369	$ 44,822	$ 537,088
Average price per share | $ / shares			$ 109.64	$ 85.27	$ 76.26
Class B Common Stock
Class of Stock [Line Items]
Common stock, shares authorized			400,000,000	400,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.0001	$ 0.0001
Number of voting rights to each shareholder, per share | vote			10
Common stock
Class of Stock [Line Items]
Common stock, shares authorized			1,600,000,000	1,600,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.0001	$ 0.0001
Number of voting rights to each shareholder, per share | vote			1
Total number of directors elected by holders of common stock, voting as single class, percentage			25.00%
Subsequent Event
Class of Stock [Line Items]
Number of shares repurchased		300,000.0
Cost of stock repurchases | $		$ 30,000
Average price per share | $ / shares		$ 113.42
Dividend Per Share | $ / shares	$ 0.28