Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

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

Stock-Based Compensation Expense, Income Tax Benefits Related to Stock-Based Compensation and Excess Tax Benefits (Provision) Recorded by Company

The following table summarizes the stock-based compensation expense (primarily in the Americas), income tax benefits related to the stock-based compensation and excess tax benefits (deficiencies) (in thousands):

	Years Ended December 31,
	2015			2014			2013
Stock-based compensation (expense) (1)	$	(8,749	)	$	(6,381	)	$	(4,873	)
Income tax benefit (2)		3,281			2,233			1,706
Excess tax benefit (deficiency) from stock-based compensation (3)		422			(82	)		(187	)

⁽¹⁾  Included in “General and administrative” costs in the accompanying Consolidated Statements of Operations.

⁽²⁾  Included in “Income taxes” in the accompanying Consolidated Statements of Operations.

⁽³⁾  Included in “Additional paid-in capital” in the accompanying Consolidated Statements of Changes in Shareholders’ Equity.

Summary of Assumptions Used to Estimate Fair Value

The following table summarizes the assumptions used to estimate the fair value of SARs granted:

	Years Ended December 31,
	2015			2014			2013
Expected volatility		34.1	%		38.9	%		45.2	%
Weighted-average volatility		34.1	%		38.9	%		45.2	%
Expected dividend rate		0.0	%		0.0	%		0.0	%
Expected term (in years)		5.0			5.0			5.0
Risk-free rate		1.6	%		1.7	%		0.8	%

Summary of Stock Appreciation Rights Activity

The following table summarizes SARs activity as of December 31, 2015 and for the year then ended:

Stock Appreciation Rights	Shares (000s)			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (000s)
Outstanding at January 1, 2015		959		$	—
Granted		217		$	—
Exercised		(695	)	$	—
Forfeited or expired		—		$	—
Outstanding at December 31, 2015		481		$	—		8.1	$	4,366
Vested or expected to vest at December 31, 2015		481		$	—		8.1	$	4,366
Exercisable at December 31, 2015		57		$	—		4.7	$	508

Weighted Average Grant Date of SARs Granted and Total Intrinsic Value of SARs Exercised

The following table summarizes information regarding SARs granted and exercised (in thousands, except per SAR amounts):

	Years Ended December 31,
	2015		2014		2013
Number of SARs granted		217		246		318
Weighted average grant-date fair value per SAR	$	8.17	$	7.20	$	6.08
Intrinsic value of SARs exercised	$	5,957	$	391	$	488
Fair value of SARs vested	$	1,302	$	1,553	$	1,298

Summary of Nonvested Stock Appreciation Rights

The following table summarizes nonvested SARs activity as of December 31, 2015 and for the year then ended:

Nonvested Stock Appreciation Rights	Shares (000s)			Weighted Average Grant- Date Fair Value
Nonvested at January 1, 2015		411		$	6.61
Granted		217		$	8.17
Vested		(204	)	$	6.41
Forfeited or expired		—		$	—
Nonvested at December 31, 2015		424		$	7.50

Summary of Nonvested Restricted Shares and Restricted Stock Units

The following table summarizes nonvested restricted shares/RSUs activity as of December 31, 2015 and for the year then ended:

Nonvested Restricted Shares and RSUs	Shares (000s)			Weighted Average Grant- Date Fair Value
Nonvested at January 1, 2015		1,194		$	16.80
Granted		441		$	25.06
Vested		(125	)	$	16.10
Forfeited or expired		(264	)	$	15.71
Nonvested at December 31, 2015		1,246		$	20.03

Summary of Weighted Average Grant-Date Fair Value Granted and Total Fair Value of Restricted Shares and Restricted Stock Units Vested

The following table summarizes information regarding restricted shares/RSUs granted and vested (in thousands, except per restricted share/RSU amounts):

	Years Ended December 31,
	2015		2014		2013
Number of restricted shares/RSUs granted		441		500		706
Weighted average grant-date fair value per restricted share/RSU	$	25.06	$	19.77	$	15.25
Fair value of restricted shares/RSUs vested	$	2,019	$	895	$	366

Summary of Nonvested Common Stock Units and Share Awards

The following table summarizes nonvested common stock share award activity as of December 31, 2015 and for the year then ended:

Nonvested Common Stock Share Awards	Shares (000s)			Weighted Average Grant- Date Fair Value
Nonvested at January 1, 2015		12		$	20.24
Granted		32		$	24.70
Vested		(33	)	$	23.43
Forfeited or expired		—		$	—
Nonvested at December 31, 2015		11		$	23.74

Summary of Weighted Average Grant-Date Fair Value of Common Stock Units and Share Awards Granted and Total Fair Value of Common Stock Units and Share Awards Vested

The following table summarizes information regarding common stock share awards granted and vested (in thousands, except per share award amounts):

	Years Ended December 31,
	2015		2014		2013
Number of share awards granted		32		36		37
Weighted average grant-date fair value per share award	$	24.70	$	20.15	$	16.01
Fair value of share awards vested	$	790	$	630	$	669

Summary of Nonvested Common Stock

The following table summarizes nonvested common stock activity as of December 31, 2015 and for the year then ended:

Nonvested Common Stock	Shares (000s)			Weighted Average Grant- Date Fair Value
Nonvested at January 1, 2015		5		$	17.88
Granted		8		$	25.06
Vested		(10	)	$	23.12
Forfeited or expired		—		$	—
Nonvested at December 31, 2015		3		$	19.53

Summary of Weighted Average Grant-Date Fair Value of Common Stock Awarded and Cash Used to Settle Company's Obligation under Deferred Compensation

The following table summarizes information regarding shares of common stock granted and vested (in thousands, except per common stock amounts):

	Years Ended December 31,
	2015		2014		2013
Number of shares of common stock granted		8		10		13
Weighted average grant-date fair value per common stock	$	25.06	$	20.54	$	16.76
Fair value of common stock vested	$	244	$	212	$	257
Cash used to settle the obligation	$	65	$	1,493	$	1,014