Stock-Based Compensation (Details 2) - Stock options shares in Thousands	12 Months Ended
	Dec. 31, 2015 $ / shares shares
Options Outstanding
Number Outstanding (in shares) | shares	362
Weighted Average Remaining Contractual Life	7 years 15 days
Weighted Average Exercise Price (in dollars per share)	$ 48.46
Options Exercisable
Number Exercisable (in shares) | shares	192
Weighted Average Exercise Price (in dollars per share)	$ 45.10
$26.34-$37.41
Information about options outstanding
Low end of exercise price range (in dollars per share)	26.34
High end of exercise price range (in dollars per share)	$ 37.41
Options Outstanding
Number Outstanding (in shares) | shares	125
Weighted Average Remaining Contractual Life	5 years 10 months 17 days
Weighted Average Exercise Price (in dollars per share)	$ 34.56
Options Exercisable
Number Exercisable (in shares) | shares	91
Weighted Average Exercise Price (in dollars per share)	$ 33.48
$40.17-$47.21
Information about options outstanding
Low end of exercise price range (in dollars per share)	40.17
High end of exercise price range (in dollars per share)	$ 47.21
Options Outstanding
Number Outstanding (in shares) | shares	3
Weighted Average Remaining Contractual Life	5 years 8 months 27 days
Weighted Average Exercise Price (in dollars per share)	$ 41.34
Options Exercisable
Number Exercisable (in shares) | shares	2
Weighted Average Exercise Price (in dollars per share)	$ 42.18
$54.76-$54.76
Information about options outstanding
Low end of exercise price range (in dollars per share)	54.76
High end of exercise price range (in dollars per share)	$ 54.76
Options Outstanding
Number Outstanding (in shares) | shares	136
Weighted Average Remaining Contractual Life	7 years 2 months 5 days
Weighted Average Exercise Price (in dollars per share)	$ 54.76
Options Exercisable
Number Exercisable (in shares) | shares	64
Weighted Average Exercise Price (in dollars per share)	$ 54.76
$57.47-$60.10
Information about options outstanding
Low end of exercise price range (in dollars per share)	57.47
High end of exercise price range (in dollars per share)	$ 60.10
Options Outstanding
Number Outstanding (in shares) | shares	98
Weighted Average Remaining Contractual Life	8 years 4 months 10 days
Weighted Average Exercise Price (in dollars per share)	$ 57.66
Options Exercisable
Number Exercisable (in shares) | shares	35
Weighted Average Exercise Price (in dollars per share)	$ 57.65