Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=118258462&loc=d3e11149-113907

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=118258462&loc=d3e11178-113907

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 35
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=116855982&loc=d3e4534-113899

Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Ordinary Shares	Treasury Shares	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2018		171,719	(7,571)
Beginning Balance at Dec. 31, 2018	$ 2,608,434	$ 2,203	$ (399,417)	$ 1,691,190	$ 1,340,636	$ (26,178)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Surrender of shares for tax withholding (in shares)			(6)
Surrender of shares for tax withholding	(275)		$ (275)
Stock options exercised (in shares)		248
Stock options exercised	5,813	$ 3		5,810
Vesting of restricted securities (in shares)		26
Vesting of restricted securities	0
Repurchase of ordinary shares (in shares)			(3,036)
Repurchase of ordinary shares	(150,749)		$ (150,749)
Retirement of ordinary shares (in shares)		(6)	6
Retirement of ordinary shares	0		$ 275		(275)
Share-based compensation	5,940			5,940
Net income	85,065				85,065
Other comprehensive income (loss)	10,143					10,143
Ending Balance at Mar. 31, 2019	2,564,371	$ 2,206	$ (550,166)	1,702,940	1,425,426	(16,035)
Ending Balance (in shares) at Mar. 31, 2019		171,987	(10,607)
Beginning Balance (in shares) at Dec. 31, 2019		172,561	(14,733)
Beginning Balance at Dec. 31, 2019	2,573,755	$ 2,212	$ (749,421)	1,725,091	1,616,357	(20,484)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Surrender of shares for tax withholding	(15)		$ (15)
Stock options exercised (in shares)		34
Stock options exercised	709			709
Vesting of restricted securities (in shares)		1
Vesting of restricted securities	0
Repurchase of ordinary shares (in shares)			(898)
Repurchase of ordinary shares	(35,175)		$ (35,175)
Retirement of ordinary shares	0		15		(15)
Share-based compensation	6,084			6,084
Net income	8,431				8,431
Other comprehensive income (loss)	(15,992)					(15,992)
Ending Balance at Mar. 31, 2020	$ 2,537,797	$ 2,212	$ (784,596)	$ 1,731,884	$ 1,624,773	$ (36,476)
Ending Balance (in shares) at Mar. 31, 2020		172,596	(15,631)