Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2016

Stockholders' Equity Note [Abstract]

Schedule of Stockholders Equity

Changes in stockholders’ equity for the six months ended June 30, 2016 and 2015 were as follows:

	Preferred stock		Preference stock			Common stock		Additional paid-in capital			Retained earnings			Accumulated other comprehensive loss			Treasury stock			Total equity
Balance at January 1, 2016	$	1	$	505		$	323,338	$	161,280		$	5,155,537		$	(888,635	)	$	(4,573,305	)	$	178,721
Net income	—		—			—		—			111,636			—			—			111,636
Other comprehensive income	—		—			—		—			—			48,208			—			48,208
Dividends paid	—		—			—		—			(70,979		)	—			—			(70,979		)
Issuance of common stock	—		—			—		(22,592		)	—			—			18,809			(3,783		)
Conversion to common stock	—		(16		)	—		(320		)	—			—			336			—
Stock-based compensation expense	—		—			—		9,786			—			—			—			9,786
Repurchase of common stock	—		—			—		—			—			—			(194,776		)	(194,776		)
Balance at June 30, 2016	$	1	$	489		$	323,338	$	148,154		$	5,196,194		$	(840,427	)	$	(4,748,936	)	$	78,813

	Preferred stock		Preference stock			Common stock		Additional paid-in capital			Retained earnings			Accumulated other comprehensive loss			Treasury stock			Total equity
Balance at January 1, 2015	$	1	$	548		$	323,338	$	178,852		$	4,897,708		$	(846,156	)	$	(4,477,032	)	$	77,259
Net income	—		—			—		—			232,382			—			—			232,382
Other comprehensive loss	—		—			—		—			—			(46,350		)	—			(46,350		)
Dividends paid	—		—			—		—			(75,648		)	—			—			(75,648		)
Issuance of common stock	—		—			—		(34,005		)	—			—			26,659			(7,346		)
Conversion to common stock	—		(26		)	—		(543		)	—			—			569			—
Stock-based compensation expense	—		—			—		11,067			—			—			—			11,067
Balance at June 30, 2015	$	1	$	522		$	323,338	$	155,371		$	5,054,442		$	(892,506	)	$	(4,449,804	)	$	191,364