Equity (Tables)

3 Months Ended

Mar. 31, 2015

Stockholders' Equity Note [Abstract]

Summary of changes in equity

The following summarizes the changes in equity for the three months ended March 31, 2015 (dollars in thousands):

	Common stock		Additional paid-in capital			Accumulated earnings less dividends			Accumulated other comprehensive loss			Total equity
Balance at December 31, 2014	$	1,320	$	9,354,685		$	(267,085	)	$	(42,515	)	$	9,046,405
Net income attributable to common stockholders	—		—			208,144			—			208,144
Cash flow hedge loss reclassified to earnings	—		—			—			1,565			1,565
Change in redemption value of redeemable noncontrolling interest	—		—			2,065			—			2,065
Dividends declared to common stockholders	—		—			(165,215		)	—			(165,215		)
Issuance of common stock, net of withholdings	2		(2,268		)	(1,239		)	—			(3,505		)
Amortization of deferred compensation	—		8,053			—			—			8,053
Balance at March 31, 2015	$	1,322	$	9,360,470		$	(223,330	)	$	(40,950	)	$	9,097,512