Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill Activity

The roll-forward of activity related to our goodwill was as follows (in thousands):

	Year Ended
	2013		2012
Balance, beginning of period	$	131,320	$	58,053
Additions	3,268		69,398
Goodwill adjustments	1,564		3,869
Balance, end of period	$	136,152	$	131,320

Schedule of Finite-Lived Intangible Assets by Major Class

The gross amount of our other intangible assets and the related accumulated amortization were as follows (in thousands):

	December 31,
	2013			2012
Patents, trademarks and other	$	24,327		$	22,047
Accumulated amortization	(9,296		)	(5,743		)
Net patents, trademarks and other	15,031			16,304
Customer relationships	21,650			20,305
Accumulated amortization	(3,547		)	(1,171		)
Net customer relationships	18,103			19,134
Developed technology	18,161			17,686
Accumulated amortization	(4,098		)	(1,771		)
Net developed technology	14,063			15,915
Note issuance costs	2,445			2,445
Accumulated amortization	(2,445		)	(2,299		)
Net note issuance costs	—			146
Total intangible assets included in other long-term assets	$	47,197		$	51,499

Schedule of Amortization Expense by Major Class

Amortization expense was as follows (in thousands):

	Year Ended
	2013		2012		2011
Patents, trademarks and other	$	3,553	$	1,993	$	1,342
Customer relationships	2,376		1,168		3
Developed technology	2,327		1,716		55
Note issuance costs	146		350		350
Total amortization expense	$	8,402	$	5,227	$	1,750

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Expected amortization, without consideration for foreign currency effects, is as follows over the next five years and thereafter (in thousands):

	Patents, Trademarks and Other		Customer Relationships		Developed Technology		Total
2014	$	3,234	$	2,420	$	2,291	$	7,945
2015	3,019		2,420		2,291		7,730
2016	2,757		2,420		2,291		7,468
2017	2,214		2,072		2,010		6,296
2018	1,646		1,988		1,847		5,481
Thereafter	2,161		6,783		3,333		12,277
Total future amortization expense	$	15,031	$	18,103	$	14,063	$	47,197