Reconciliation of Common Shareholders' Equity, Common Shares and Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Stockholders Equity and Earnings Per Share [Abstract]

Schedule of reconciliation of common shareholders' equity

(in thousands)	Par Value, Common Shares			Premium on Common Shares			Retained Earnings			Accumulated Other Comprehensive Income/(Loss)			Total Common Equity
Balance, December 31, 2015	$	189,286		$	293,610		$	126,025		$	(3,898	)	$	605,023
Common Stock Issuances, Net of Expenses		6,855			34,601									41,456
Common Stock Retirements		(18	)		(86	)								(104	)
Net Income								44,811						44,811
Other Comprehensive Income											322			322
Employee Stock Incentive Plans Expense					1,163									1,163
Common Dividends ($0.9375 per share)								(35,952	)					(35,952	)
Balance, September 30, 2016	$	196,123		$	329,288		$	134,884		$	(3,576	)	$	656,719

Schedule of common shares outstanding from December 31, 2015 through March 31, 2016

Common Shares Outstanding, December 31, 2015	37,857,186
Issuances:
At-the-Market Offering	977,712
Automatic Dividend Reinvestment and Share Purchase Plan:
Dividends Reinvested	131,111
Cash Invested	79,494
Executive Stock Performance Awards (2013 and 2014 shares earned)	54,700
Employee Stock Purchase Plan:
Cash Invested	40,324
Dividends Reinvested	19,090
Employee Stock Ownership Plan	23,837
Restricted Stock Issued to Directors	23,200
Vesting of Restricted Stock Units	21,025
Directors Deferred Compensation	542
Retirements:
Shares Withheld for Individual Income Tax Requirements	(3,668	)
Common Shares Outstanding, September 30, 2016	39,224,553

Schedule of reconciliation of weighted average common shares outstanding - basic to weighted average common shares outstanding - diluted

	Three Months ended September 30				Nine Months ended September 30
	2016		2015		2016		2015
Weighted Average Common Shares Outstanding – Basic		38,832,659		37,575,413		38,316,324		37,417,283
Plus Outstanding Share Awards net of Share Reductions for Unrecognized Stock-Based Compensation Expense and Excess Tax Benefits:
Shares Expected to be Awarded for Stock Performance Awards Granted to Executive Officers based on Measurement Period-to-Date Performance		103,084		141,540		80,450		141,540
Underlying Shares Related to Nonvested Restricted Stock Units Granted to Employees		48,645		44,280		42,620		44,280
Nonvested Restricted Shares		18,029		31,079		14,556		31,079
Shares Expected to be Issued Under the Deferred Compensation Program for Directors		3,289		2,231		3,451		2,231
Total Dilutive Shares		173,047		219,130		141,077		219,130
Weighted Average Common Shares Outstanding – Diluted		39,005,706		37,794,543		38,457,401		37,636,413