Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

Reconciliation of the beginning and ending common stock outstanding

The Company had no preferred shares outstanding and had common shares outstanding for the three years ended December 31, 2013 as follows:

	Year Ended December 31,
	2013	2012	2011
Balance, beginning of year	87,514,336	77,843,883	66,071,424
Issuance of common stock	8,293,369	9,275,895	11,681,392
Non-vested stock-based awards, net of forfeitures	116,634	394,558	91,067
Balance, end of year	95,924,339	87,514,336	77,843,883

Schedule of sale of stock under market equity offering Program

The following table details the shares sold under this program.

	Shares Sold	Sales Price Per Share	Net Proceeds (in millions)
2013	5,207,871	$24.19 - $30.49	$	140.6
2012	—	—	$	—
2011	11,648,700	$20.27 - $23.63	$	251.6

Reconciliation of beginning and ending balances of accumulated other comprehensive income

The following table represents the amounts reclassified out of Accumulated other comprehensive income (loss) related to the Company's pension plan during the twelve months ended December 31, 2013 and 2012:

	Twelve Months Ended December 31,
	2013			2012
Beginning balance	$	(2,092	)	$	(3,332	)
Other comprehensive income before reclassifications	1,952			973
Amounts reclassified from accumulated other comprehensive income (loss)	191			267
Net current-period other comprehensive income	2,143			1,240
Ending balance	$	51		$	(2,092	)

Reclassifications out of accumulated other comprehensive income

The following table represents the details regarding the reclassifications from Accumulated other comprehensive income (loss) related to the Company's pension plan during the twelve months ended December 31, 2013:

Details about accumulated other comprehensive income components	Amount reclassified from accumulated other comprehensive income			Affected line item in the statement where net income is presented
(Dollars in thousands)
Prior service costs	$	(1,189	)	General and administrative expenses
Actuarial gains	1,380			General and administrative expenses
	$	191