Components of Equity (Tables)

3 Months Ended

Mar. 31, 2019

Stockholders' Equity Note [Abstract]

Schedule of Components of Equity Disclosure

The components of equity for the three months ended March 31,2019 and 2018 are as follows:

	Common Stock
	Shares		Par value			Additional paid-in capital		Retained earnings		Accumulated  other comprehensive loss		Total shareholders’ equity		Noncontrolling interest		Total equity
Balance at December 31, 2018	171,582		$	1,716		1,896		2,088,707		(105,481	)	1,986,838		882		1,987,720
Exercise of stock options and release of restricted shares	654		6			27,184		—		—		27,190		—		27,190
Shares repurchased under provisions of stock repurchase plans	(588	)	(6		)	(38,484	)	(5,844	)	—		(44,334	)	—		(44,334	)
Stock compensation expense	—		—			13,382		—		—		13,382		—		13,382
Net earnings	—		—			—		139,699		—		139,699		412		140,111
Other comprehensive income (loss)	—		—			—		—		1,495		1,495		(130	)	1,365
Balance at March 31, 2019	171,648		$	1,716		3,978		2,222,562		(103,986	)	2,124,270		1,164		2,125,434
Balance at December 31, 2017	176,374		$	1,764		546		2,063,512		(73,964	)	1,991,858		2,515		1,994,373
Cumulative effect of accounting change	—		—			—		(22,357	)	—		(22,357	)	(105	)	(22,462	)
Exercise of stock options and release of restricted shares	596		6			26,391		—		—		26,397		—		26,397
Shares repurchased under provisions of stock repurchase plans	(2,662	)	(27		)	(37,006	)	(135,327	)	—		(172,360	)	—		(172,360	)
Stock compensation expense	—		—			11,267		—		—		11,267		—		11,267
Net earnings	—		—			—		135,692		—		135,692		508		136,200
Other comprehensive income (loss)	—		—			—		—		8,972		8,972		(121	)	8,851
Balance at March 31, 2018	174,308		$	1,743		1,198		2,041,520		(64,992	)	1,979,469		2,797		1,982,266