Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The following table shows stock-based compensation expense included in the Consolidated Statements of Income:

	Years Ended December 31,
	2015			2014			2013
Cost of equipment sales	$	998		$	1,004		$	886
Cost of software	211			95			—
Cost of support services	786			607			382
Cost of business services	845			694			527
Selling, general and administrative	16,460			14,028			11,099
Research and development	1,749			1,018			435
Discontinued operations (1)	—			—			1,592
Stock-based compensation expense	21,049			17,446			14,921
Tax benefit	(8,083		)	(6,699		)	(5,759		)
Stock-based compensation expense, net of tax	$	12,966		$	10,747		$	9,162

(1) Amount represents the expense related to the immediate vesting of restricted stock units and stock options held by employees of PBMS upon the sale of the business.

Schedule of Share-based Compensation, Restricted Stock Units Award Activity

The following table summarizes information about restricted stock units during 2015 and 2014:

	2015				2014
	Shares		Weighted average grant date fair value		Shares		Weighted average grant date fair value
Outstanding - beginning of the year	1,819,239		$	16.41	1,941,312		$	13.19
Granted	809,436		21.15		685,994		23.62
Vested	(802,284	)	16.88		(713,886	)	14.50
Forfeited	(99,177	)	17.93		(94,181	)	15.11
Outstanding - end of the year	1,727,214		$	18.30	1,819,239		$	16.41

Schedule of Share-based Compensation, Performance Stock Units Award Activity

The following table summarizes share information about Performance stock units (PSUs) during 2015:

	Years Ended December 31,
	2015		2014
Outstanding - beginning of the year	606,715		—
Granted	725,330		493,255
Performance adjustments	(188,774	)	113,460
Forfeited	(35,756	)	—
Outstanding - end of the year	1,107,515		606,715

Schedule of Share-based Compensation, Stock Options, Activity

The following table summarizes information about stock option activity during 2015 and 2014:

	2015				2014
	Shares		Per share weighted average exercise prices		Shares		Per share weighted average exercise prices
Options outstanding - beginning of the year	10,708,694		$	34.27	12,396,894		$	34.90
Granted	200,000		24.79		—		—
Exercised	—		—		(137,072	)	22.78
Canceled	(100,200	)	31.59		(114,925	)	36.05
Expired	(2,036,894	)	46.42		(1,436,203	)	40.06
Options outstanding - end of the year	8,771,600		$	31.26	10,708,694		$	34.27
Options exercisable - end of the year	8,054,932		$	32.14	9,808,694		$	35.60

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The following table provides additional information about stock options outstanding and exercisable at December 31, 2015:

	Options Outstanding				Options Exercisable
Range of per share exercise prices	Shares	Per share weighted-average exercise price		Weighted-average remaining contractual life	Shares	Per share weighted-average exercise price		Weighted-average remaining contractual life
$13.39 - $22.99	2,290,103	$	20.23	5.6 years	1,880,102	$	20.50	5.3 years
$23.00 - $30.99	2,538,566	25.26		4.7 years	2,231,899	25.36		4.1 years
$31.00 - $45.99	3,311,665	40.30		1.2 years	3,311,665	40.30		1.2 years
$46.00 - $48.03	631,266	48.03		1.1 years	631,266	48.03		1.1 years
	8,771,600	$	31.26	3.4 years	8,054,932	$	32.14	2.9 years

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of stock options granted during 2015 was determined using the following assumptions:

Expected dividend yield	3.4	%
Expected stock price volatility	29.0	%
Risk-free interest rate	2.0	%
Expected life	7 years
Weighted-average fair value per option granted	$3.38
Fair value of options granted (in thousands)	$676