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Components of Equity (Tables)
 6 Months Ended
Jun. 30, 2018
Stockholders' Equity Note [Abstract]  
Schedule of Components of Equity Disclosure
The components of equity for the six months ended June 30, 2018 and 2017 are as follows:
 
Shareholders’
equity
 
Noncontrolling
interest
 
Total
equity
Balance at December 31, 2017
$
1,991,858

 
2,515

 
1,994,373

Cumulative effect of accounting change
(22,357
)
 
(105
)
 
(22,462
)
Exercise of stock options and release of restricted awards, net of shares withheld for employee taxes
118,545

 
—

 
118,545

Shares repurchased under provisions of stock repurchase plans
(407,932
)
 
—

 
(407,932
)
Stock compensation expense
29,269

 
—

 
29,269

Net earnings
276,297

 
849

 
277,146

Other comprehensive loss
(16,748
)
 
(452
)
 
(17,200
)
Dividends paid ($0.45 per share)
$
(79,180
)
 
 
 
(79,180
)
Balance at June 30, 2018
$
1,889,752

 
2,807

 
1,892,559

 
 
 
 
 
 
Balance at December 31, 2016
$
1,844,638

 
2,575

 
1,847,213

Exercise of stock options
96,866

 
—

 
96,866

Shares repurchased under provisions of stock repurchase plans
(137,960
)
 
—

 
(137,960
)
Stock compensation expense
27,826

 
—

 
27,826

Net earnings
202,115

 
207

 
202,322

Other comprehensive income
18,085

 
11

 
18,096

Dividends paid ($0.42 per share)
$
(75,726
)
 
 
 
(75,726
)
Balance at June 30, 2017
$
1,975,844

 
2,793

 
1,978,637