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

12 Months Ended

Dec. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Economic Useful Lives Of Property, Plant And Equipment

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

Category	Economic Useful Life
Buildings	30 years
Machinery and equipment	5-12 years
Office furniture and fixtures	3-5 years

Allowance For Doubtful Accounts

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

	2015			2014			2013
Balance at January 1	$	1,890		$	2,473		$	2,173
Provision for bad debts, net of recoveries	427			579			323
Uncollectable accounts written off	(114		)	(617		)	(31		)
Foreign currency translation	(392		)	(545		)	8
Balance at December 31	$	1,811		$	1,890		$	2,473

Summary Of Product Warranty Activity

Activity related to the warranty accrual was as follows:

	2015			2014			2013
Balance at January 1	$	19,272		$	14,997		$	10,714
Provision for warranty accrual	22,808			15,449			11,363
Warranty claims	(12,208		)	(9,165		)	(7,405		)
Foreign currency translation and other	(1,662		)	(2,009		)	325
Balance at December 31	$	28,210		$	19,272		$	14,997

Assets And Liabilities Measured At Fair Value

The following table presents information about the Company's assets and liabilities measured at fair value:

			Fair Value Measurements at December 31, 2015
	Total		Level 1		Level 2		Level 3
Assets
Cash equivalents	$	214,232	$	214,232	$	—	$	—
Short-term investments	106,375		106,375		—		—
Auction rate securities	1,136		—		—		1,136
Total assets	$	321,743	$	320,607	$	—	$	1,136
Liabilities
Collateralized long-term note	$	19,667	$	19,667	$	—	$	—
Contingent purchase consideration	$	20	$	—	$	—	$	20
Total liabilities	$	19,687	$	19,667	$	—	$	20

			Fair Value Measurements at December 31, 2014
	Total		Level 1		Level 2		Level 3
Assets
Cash equivalents	$	266,011	$	266,011	$	—	$	—
Auction rate securities	1,128		—		—		1,128
Total assets	$	267,139	$	266,011	$	—	$	1,128
Liabilities
Collateralized long-term note	$	21,667	$	21,667	$	—	$	—
Contingent purchase consideration	$	98	$	—	$	—	$	98
Interest rate swap	151		—		151		—
Total liabilities	$	21,916	$	21,667	$	151	$	98

Assets Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs

The following table presents information about the Company's movement in Level 3 assets and liabilities measured at fair value:

	2015			2014			2013
Auction Rate Securities
Balance, January 1	$	1,128		$	1,120		$	1,112
Change in fair value and accretion	8			8			8
Balance, December 31	$	1,136		$	1,128		$	1,120
Contingent Purchase Consideration
Balance, January 1	$	98		$	375		$	3,023
Period transactions	(50		)	—			—
Change in fair value and currency fluctuations	(28		)	(277		)	(2,648		)
Balance, December 31	$	20		$	98		$	375

Components Of Accumulated Other Comprehensive Income (Loss)

Total components of accumulated other comprehensive loss were as follows:

	December 31,
	2015			2014
Foreign currency translation adjustments	$	(181,725	)	$	(112,411	)
Unrealized gain (loss) on derivatives, net of tax of $45 and $67	11			(84		)
Change in carrying value of auction rate securities	232			232
Accumulated other comprehensive loss	$	(181,482	)	$	(112,263	)

Fair Value Of Cash Flow Hedges

The fair value amounts in the consolidated balance sheets were:

Notional Amounts1				Other Assets				Other Current Liabilities				Deferred Income Taxes And Other Long-Term Liabilities
December 31,				December 31,				December 31,				December 31,
2015		2014		2015		2014		2015		2014		2015		2014
$	—	$	11,333	$	—	$	—	$	—	$	151	$	—	$	—

 (1) Notional amounts represent the gross contract/notional amount of the derivative outstanding.

Derivative Gains (Losses) In The Consolidated Statements Of Income Related To Interest Rate Swap Contracts

The derivative gains and losses in the consolidated statements of income for the years ended December 31, 2015, 2014 and 2013, related to the Company's previous interest rate swap contract was as follows:

	Year Ended December 31,
	2015			2014			2013
Effective portion recognized in other comprehensive (loss) income, pretax:
Interest rate swap	$	304		$	567		$	881
Effective portion reclassified from other comprehensive (loss) income to interest expense, pretax:
Interest rate swap	$	(153	)	$	(295	)	$	(449	)
Ineffective portion recognized in income:
Interest rate swap	$	—		$	—		$	—