Nature Of Business And Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule Of Allowance For Doubtful Accounts

Activity related to the allowance for doubtful accounts was as follows:

	2019		2018		2017
Balance at January 1	$	1,731	$	2,198	$	2,016
Provision for bad debts, net of recoveries	677		14		51
Uncollectable accounts written off	(111)		(198)		(38)
Foreign currency translation	102		(283)		169
Balance at December 31	$	2,399	$	1,731	$	2,198

Property, Plant and Equipment

The following table presents the assigned economic useful lives of property, plant and equipment:

Category	Economic Useful Life
Buildings	20-30 years
Machinery and equipment	5-7 years
Office furniture and fixtures	5-7 years

Schedule of Accumulated Other Comprehensive Income (Loss)

Total components of accumulated other comprehensive loss were as follows:

	December 31,
	2019		2018
Foreign currency translation adjustments	$	(147,161)	$	(163,155)
Unrealized gain on auction rate securities	232		232
Unrealized gain on derivatives, net of tax of $3 and $4, respectively	10		27
Accumulated other comprehensive loss	$	(146,919)	$	(162,896)

Cumulative Effect of Change to Balance Sheet

The cumulative effect of the changes made to the Company's consolidated January 1, 2019 balance sheet for the adoption of ASC 842 related to operating leases was as follows:

	Balance at		Adoption of		Balance at
	December 31, 2018		ASC 842		January 1, 2019
Balance Sheet
Prepaid expenses and other current assets	$	57,764	$	(324)	$	57,440
Other assets	18,932		19,463		38,395
Accrued expenses and other current liabilities	154,640		5,292		159,932
Deferred income taxes and other long-term liabilities	80,734		13,847		94,581

The cumulative effect of the changes made to the Company's consolidated January 1, 2018 balance sheet for the adoption of ASC 606, ASU 2018-02 and ASU 2016-16 was as follows:

	Balance at		Adoption of		Adoption of		Adoption of		Balance at
	12/31/2017		ASC 606		ASU 2018-02		ASU 2016-16		1/1/2018
Balance Sheet
Prepaid income taxes	$	44,944	$	—	$	—	$	(1,203)	$	43,741
Deferred income tax assets	26,976		(55)		—		1,229		28,150
Customer deposits and deferred revenue (short-term)	47,324		(816)		—		—		46,508
Income taxes payable	15,773		37		—		—		15,810
Deferred income tax liabilities	21,362		134		—		—		21,496
Retained earnings	1,443,867		590		(10)		26		1,444,473
Accumulated other comprehensive loss	(77,344)		—		10		—		(77,334)

Schedule of Restricted Cash

The reconciliation of the Company's cash and cash equivalents in the consolidated balance sheets to cash, cash equivalents and restricted cash in the consolidated statement of cash flows is as follows:

	Balance at		Balance at
	December 31, 2019		December 31, 2018
Cash and cash equivalents	$	680,070	$	544,358
Restricted cash included in other assets	2,914		—
Cash, cash equivalents and restricted cash	$	682,984	$	544,358

Schedule of Cash and Cash Equivalents

The reconciliation of the Company's cash and cash equivalents in the consolidated balance sheets to cash, cash equivalents and restricted cash in the consolidated statement of cash flows is as follows:

	Balance at		Balance at
	December 31, 2019		December 31, 2018
Cash and cash equivalents	$	680,070	$	544,358
Restricted cash included in other assets	2,914		—
Cash, cash equivalents and restricted cash	$	682,984	$	544,358