Capital Stock (Tables)

12 Months Ended

Dec. 31, 2016

Capital Stock [Abstract]

Issuances of Common Stock

($ in thousands, except per share amounts)
			Weighted
			Average
			Price
			Received			Net
Type of Offering	Period		Per Share(1)	Shares		Proceeds(2)
2016
At the Market Offering Program(3)	Second Quarter	$	10.48	646,753	$	6,591
At the Market Offering Program(3)	Third Quarter		10.80	3,818,802	$	40,525
At the Market Offering Program(3)	Fourth Quarter		10.79	6,707,101		71,212
				11,172,656	$	118,328
2015
At the Market Offering Program(3)	First Quarter	$	13.66	1,210,487	$	16,175
At the Market Offering Program(3)	Second Quarter		13.65	5,024,530		67,100
				6,235,017	$	83,275

Dividends

(in thousands, except per share data)
Year	Per Share Amount			Total
2014	$	2.16	$	22,643
2015		1.92		38,748
2016		1.68		41,388
2017(1)		0.28		9,245