Share-Based Compensation and Capital Stock - Summary of Change in Stock-Based Award Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at January 1 - Shares	2,084,201		1,903,177		1,661,952
Granted - Shares	745,769		498,911		651,757
Exercised - Shares	(529,210)		(295,037)		(390,290)
Expired - Shares	(13,620)		0		0
Forfeited - Shares	(93,638)		(22,850)		(20,242)
Outstanding at December 31 - Shares	2,193,502		2,084,201		1,903,177
Options Exercisable at December 31 - Shares	816,969		991,202		995,173
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at January 1 - Weighted average exercise price (in dollars per share)	$ 41.36		$ 33.03		$ 26.44
Granted - Weighted average exercise price (in dollars per share)	51.49		63.47		45.59
Exercised - Weighted average exercise price (in dollars per share)	24.47		23.91		25.87
Expired - Weighted average exercise price (in dollars per share)	57.62		0.00		0.00
Forfeited - Weighted average exercise price (in dollars per share)	53.63		55.44		34.33
Outstanding at December 31 - Weighted average exercise price (in dollars per share)	48.26		41.36		33.03
Options Exercisable at December 31 - Weighted average exercise price (in dollars per share)	$ 40.75		$ 29.57		$ 25.06
Weighted Average Remaining Contractual Life - Options Outstanding at December 31	4 years 7 months 13 days		3 years 11 months 13 days		3 years 9 months 18 days
Weighted Average Remaining Contractual Life - Options Exercisable at December 31	3 years 3 months 4 days		2 years 3 months 4 days		2 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at January 1 - Shares	384,490		479,556		563,345
Granted - Shares	204,333		125,510		154,833
Vested - Shares	(152,015)		(200,743)		(214,818)
Forfeited - Shares	(28,996)		(19,833)		(23,804)
Outstanding at December 31 - Shares	407,812		384,490		479,556
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at January 1 - Weighted average grant date fair value (in dollars per share)	$ 47.40		$ 40.14		$ 36.64
Weighted average grant date fair value (in dollars per share)	51.53		61.41		46.81
Vested - Weighted average grant date fair value (in dollars per share)	43.61		38.94		35.91
Forfeited - Weighted average grant date fair value (in dollars per share)	51.22		46.17		38.97
Outstanding at December 31 - Weighted average grant date fair value (in dollars per share)	$ 50.61		$ 47.40		$ 40.14
Performance Vested Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at January 1 - Shares	226,737		200,286		216,342
Granted - Shares	89,944		71,006		24,678
Performance-Based Leveraging - Shares	2,043	[1]	3,850	[2]	10,251
Vested - Shares	(28,188)		(42,326)		(28,886)
Forfeited - Shares	(54,556)		(6,079)		(22,099)
Outstanding at December 31 - Shares	235,980		226,737		200,286
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at January 1 - Weighted average grant date fair value (in dollars per share)	$ 45.09		$ 38.28		$ 37.34
Weighted average grant date fair value (in dollars per share)	47.85		58.12		45.59
Performance-Based Leveraging - Weighted average grant date fair value (in dollars per share)	36.76		35.60		41.25
Vested - Weighted average grant date fair value (in dollars per share)	36.76		35.60		41.25
Forfeited - Weighted average grant date fair value (in dollars per share)	42.82		32.90		34.77
Outstanding at December 31 - Weighted average grant date fair value (in dollars per share)	$ 47.59		$ 45.09		$ 38.28

[1] PVRSU units outstanding have been increased by 2,043 units during the year ended December 31, 2016, due to the Company exceeding the targeted performance conditions contained in PVRSU's granted in prior periods

[2] PVRSU units outstanding have been increased by 3,850 units during the year ended December 31, 2015, due to the Company exceeding the targeted performance conditions contained in PVRSU's granted in prior periods.