Changes in Equity (Details) $ in Thousands	9 Months Ended
Sep. 30, 2016 USD ($)
Increase (Decrease) in Equity
Balances	$ 2,545,111
Exercise of stock options proceeds, including related tax effect	7,876
Dividends declared	(102,342)
Distributions to noncontrolling investors, net	(10)
Equity-based compensation	18,553
Comprehensive and net income (loss)	356,174
Balances	2,825,362
Common Stock
Increase (Decrease) in Equity
Balances	638
Exercise of stock options proceeds, including related tax effect	2
Balances	640
Additional Paid-In Capital
Increase (Decrease) in Equity
Balances	1,110,253
Exercise of stock options proceeds, including related tax effect	7,874
Equity-based compensation	14,238
Balances	1,132,365
Retained Earnings
Increase (Decrease) in Equity
Balances	1,965,291
Dividends declared	(102,342)
Equity-based compensation	(89)
Comprehensive and net income (loss)	362,103
Balances	2,224,963
Treasury Stock
Increase (Decrease) in Equity
Balances	(396,455)
Equity-based compensation	4,404
Balances	(392,051)
Noncontrolling Interests
Increase (Decrease) in Equity
Balances	(134,616)
Distributions to noncontrolling investors, net	(10)
Comprehensive and net income (loss)	(5,929)
Balances	(140,555)
Redeemable Noncontrolling Interest
Increase (Decrease) in Equity
Balances	126,340
Balances	$ 126,340

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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