Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Intangible Assets [Line Items]
In Process Research and Development	$ 2,250	$ 550
Net carrying amount	141,302	133,212
Aggregate amortization expense	16,400	21,100	$ 24,700
2015	15,708
2016	14,964
2017	13,129
2018	12,375
2019	10,682
Acquired identifiable intangibles
Intangible Assets [Line Items]
Acquired identifiable intangibles,Gross	194,391	214,865
Less accumulated amortization	(58,173)	(87,997)
Net carrying amount	136,218	126,868
Product technology | Acquired identifiable intangibles
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 76,182	67,620
Weighted average estimated useful life	10 years
Customer relationships | Acquired identifiable intangibles
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 69,272	80,206
Weighted average estimated useful life	12 years
Trademarks and tradename portfolios | Acquired identifiable intangibles
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 7,540	7,160
Weighted average estimated useful life	14 years
Tradename not subject to amortization [Member] | Acquired identifiable intangibles
Intangible Assets [Line Items]
acquired indefinite life intangible asset	Indefinite
Other | Acquired identifiable intangibles
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 1,474	21,012
Weighted average estimated useful life	8 years
Patents | Nonacquired intangibles
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 6,104	9,905
Less accumulated amortization	(1,671)	(4,544)
Net carrying amount	$ 4,433	5,361
Weighted average estimated useful life	7 years
Acquired in-place leases and other | Nonacquired intangibles
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 2,080	9,309
Less accumulated amortization	(1,429)	(8,326)
Net carrying amount	$ 651	983
Weighted average estimated useful life	7 years
Tradename not subject to amortization [Member] | Acquired identifiable intangibles
Intangible Assets [Line Items]
Infinite-Lived Intangibles, Gross	$ 37,673	$ 38,317