Taxes (Textuals) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	21.40%	34.50%	23.80%
Deferred tax asset related to U.S. tax credit carryforwards	$ 69,000
Provisional one-time charge on US tax reform	3,597	$ 71,982	$ 0
Cash Tax Portion of the One Time Provisional Transition Tax Charge	62,000
Unrepatriated foreign earnings due to the estimated Transition Tax	54,000
Foreign withholdings taxes related to transition tax	8,000
One-time non-cash charge related to tax changes in the current year	$ 13,000
Tax Cuts and Jobs Act Pay Period	8 years
Long Term Portion of Taxes Payable related to the Tax Cuts and Jobs Act	$ 46,000
Deferred Tax Portion of the taxes payable related to Tax Cuts and Jobs Act	8,000
Short Term Portion of Taxes Payable related to the Tax Cuts and Jobs Act	4,000
US Tax Reform Payment	$ 4,200
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate		35.00%	35.00%
Impact on effective tax rate related to US Tax Reform, percent	0.60%	12.50%
US Federal Corporate Income Tax Rate	21.00%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 25,700	$ 24,100
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	3,700	$ 2,800
Impact to Valuation Allowance due to Tax Cuts and Jobs Act	$ 11,000
Impact on tax rate related to Biotix Contingent Consideration Gain	0.70%