Income Tax (Narrative) (Details) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Income Tax Disclosure [Line Items]
Accrued income taxes	$ 12,800,000	$ 12,800,000
Accrued income taxes, current	5,600,000	5,600,000
Non-current tax liabilities	7,200,000	7,200,000
Accrued income taxes, current judgment	3,500,000	3,500,000
Unrecognized tax benefits	2,700,000	2,700,000
Interest balance	5,600,000	5,600,000	$ 5,500,000
Increase (decrease) to gross unrecognized tax benefits			3,700,000
Impact of effective tax rate if recognized			$ 2,700,000
Reversal of tax expense on undistributed foreign earnings	3,394,000	3,394,000
Estimate of possible tax expense	5,100,000
Minimum [Member]
Income Tax Disclosure [Line Items]
Uncertain tax position probable changes in next 12 months	100,000	100,000
Maximum [Member]
Income Tax Disclosure [Line Items]
Uncertain tax position probable changes in next 12 months	$ 1,000,000	$ 1,000,000