Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2017

Stockholders' Equity Note [Abstract]

Schedule of Dividends Declared and Paid

The table below summarizes the regular quarterly dividends declared and paid during the years ended December 31, 2017 and 2016:

(In thousands, except per share data)	Per Share		Record Date	Payment Date	Total Paid
First Quarter 2016	$	0.30	04/01/16	04/15/16	$	7,344
Second Quarter 2016	0.30		06/06/16	06/17/16	7,363
Third Quarter 2016	0.30		08/19/16	09/02/16	7,371
Fourth Quarter 2016	0.50		11/28/16	12/09/16	12,359
Total 2016	$	1.40			$	34,437
First Quarter 2017	$	0.50	03/06/17	03/17/17	$	12,442
Second Quarter 2017	0.50		05/19/17	06/02/17	12,445
Third Quarter 2017	0.50		08/18/17	09/01/17	12,459
Fourth Quarter 2017	0.55		11/17/17	12/01/17	13,711
Total 2017	$	2.05			$	51,057

Schedule of Stock-Based Compensation

Stock-based compensation resulted in charges to operations as follows for the years ended December 31:

(In thousands)	2017		2016		2015
Stock options	$	—	$	444	$	974
Deferred stock units	10,696		7,830		7,023
Restricted stock	1,191		1,770		1,031
Stock awards	8,149		5,376		5,015
Stock-based compensation expense	$	20,036	$	15,420	$	14,043

Schedule of Stock Options

Transactions in stock options under the Equity Plan are summarized as follows:

	Number of Option Shares		Weighted Average Exercise Price
Outstanding at December 31, 2014	453,331		$	16.89
Exercised	(214,601	)	14.48
Forfeited	(26,700	)	14.30
Reduction for special cash dividend	—		(2.00		)
Outstanding at December 31, 2015	212,030		15.38
Exercised	(183,600	)	15.10
Forfeited	(1,550	)	17.17
Outstanding at December 31, 2016	26,880		17.17
Exercised	(26,180	)	17.17
Forfeited	(700	)	17.17
Outstanding at December 31, 2017	—		$	—
Exercisable at December 31, 2017	—		$	—

Schedule Exercise of Stock Options

Additional information for the exercise of stock options is as follows for the years ended December 31:

(In thousands)	2017		2016		2015
Intrinsic value of stock options exercised	$	2,340	$	13,204	$	9,424
Cash receipts from stock options exercised	$	450	$	2,772	$	3,280
Income tax benefits from stock option exercises	$	900	$	4,435	$	2,885
Grant date fair value of stock options vested	$	—	$	506	$	1,055

Schedule of Deferred Stock Units Transactions

Transactions in DSUs and RSUs under the Equity Plan are summarized as follows:

	Number of Shares		Weighted Average Price
Outstanding at December 31, 2014	738,288		$	36.96
Issued	54,982		47.51
Granted	90,184		60.22
Dividend equivalents	20,922		59.94
Forfeited	(23,604	)	44.78
Exercised	(353,259	)	32.62
Outstanding at December 31, 2015	527,513		$	44.94
Issued	10,742		72.01
Granted	173,097		54.67
Dividend equivalents	9,075		87.01
Forfeited	(10,893	)	48.98
Exercised	(203,087	)	43.55
Outstanding at December 31, 2016	506,447		$	50.00
Issued	68,340		108.61
Granted	95,079		109.50
Dividend equivalents	9,799		104.12
Forfeited	(3,094	)	72.96
Exercised	(227,516	)	40.39
Outstanding at December 31, 2017	449,055		$	72.55

Schedule of Restricted Stock Grants

Restricted stock grants, which were all made to directors, were as follows (in thousands except share and per share amounts):

	2017		2016		2015
Granted	14,018		17,439		20,558
Weighted average stock price	$	92.25	$	74.55	$	59.32
Fair value of stock granted	$	1,293	$	1,300	$	1,220

Schedule of Stock Awards

Transactions in stock awards under the Equity Plan are summarized as follows:

	Number of Shares		Stock Price
Outstanding at December 31, 2014	272,818		$	39.03
Granted	96,010		60.29
Dividend equivalents	8,992		59.94
Forfeited	(16,534	)	60.29
Exercised	(98,830	)	29.70
Outstanding at December 31, 2015	262,456		$	49.36
Granted	86,918		54.47
Dividend equivalents	3,811		88.04
Forfeited	(10,832	)	53.95
Exercised	(109,731	)	39.94
Outstanding at December 31, 2016	232,622		$	55.60
Granted	103,382		90.36
Dividend equivalents	5,249		104.93
Exercised	(69,434	)	51.20
Outstanding at December 31, 2017	271,819		$	70.29

Schedule of Computation of Basic and Diluted Earnings Per Share

The following reconciliation details the denominator used in the computation of basic and diluted earnings per share for the years ended December 31:

(In thousands)	2017	2016	2015
Weighted average shares outstanding for basic earnings per share	25,020	24,631	24,295
Common stock equivalents pertaining to stock-based awards	355	302	355
Weighted average shares outstanding for diluted earnings per share	25,375	24,933	24,650