XML 43 R30.htm IDEA: XBRL DOCUMENT v3.10.0.1

Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Option Activity

The following table summarizes the Company’s stock option activity (in thousands, except per share data and years) for the periods indicated:

		Stock Options Outstanding
						Weighted Average				Aggregate				Weighted Average
						Exercise Price				Intrinsic				Remaining Contractual
		Shares				Per Share				Value				Term (Years)
Balance as of January 1, 2016			1,323			$	129.04
Granted			45			189.62
Exercised			(112	)		97.82				$	8,102
Forfeited/Expired			(370	)		110.28
Balance as of December 31, 2016			886				143.89
Granted		175					169.04
Exercised			(12	)			143.35			$	541
Forfeited/Expired			(57	)			196.52
Balance as of December 31, 2017			992				145.28
Granted		710					130.27
Exercised			(21	)			121.13			$	196
Forfeited/Expired			(201	)			154.49
Balance as of December 31, 2018			1,480			$	137.16
Exercisable as of December 31, 2018			701			$	136.01			$	3,317			5.5
Expected to vest as of December 31, 2018			779			$	138.20				174			9.0
Total			1,480			$	137.16			$	3,491			7.3

Schedule of Range of Exercise Prices per Share

Stock options outstanding as of December 31, 2018 are comprised of the following range of exercise prices per share (in thousands, except per share data and years):

		Stock Options Outstanding at December 31, 2018
						Weighted Average				Weighted Average
						Exercise Price				Remaining Contractual
Range of Exercise Prices per Share		Shares				Per Share				Term (Years)
$117.85 - $120.00			23			$	118.50				3.1
$120.01 - $150.00			1,174			$	126.66				7.6
$150.01 - $180.00			121			$	168.44				5.8
$180.01 - $201.25			162			$	192.40				7.3
Total			1,480			$	137.16				7.3

Assumptions Used in Black-Scholes Pricing Model

The weighted average grant date fair value of stock option awards using the Black-Scholes option pricing model was $51.68, $68.67, and $75.54 for each share subject to a stock option granted during the years ended December 31, 2018, 2017, and 2016, respectively, based on the following assumptions:

		Years Ended December 31,
		2018		2017		2016
Expected term of options in years		6.3		6.3		6.3
Expected volatility		33.7% - 35.5%		37.4% - 37.8%		38.5%
Risk-free interest rate		2.7% - 2.9%		1.9% - 2.3%		1.4% - 1.6%
Expected dividend yield		0.0%		0.0%		0.0%

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration