Income Taxes (Unrecognized tax benefits - rollforward and discussion) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, beginning of period	$ 8,218,000	$ 7,930,000	$ 10,503,000
Additions based on tax positions related to the current year	17,752,000	5,551,000	24,000
Additions for tax positions of prior years	2,723,000	54,000	699,000
Reductions for tax positions of prior years	(108,000)	(4,091,000)	(2,248,000)
Reductions related to settlements with tax authorities	1,353,000	1,226,000	991,000
Reductions from lapse of statutes of limitations	(104,000)	0	(57,000)
Balance, end of period	27,128,000	8,218,000	7,930,000
Income tax contingency [Abstract]
Unrecognized tax benefits, period increase (decrease)	18,900,000
Liability for uncertain tax positions	5,100,000
Tax Deductions [Member]
Income tax contingency [Abstract]
Unrecognized tax benefits, period increase (decrease)	19,700,000
Revenue Attribution [Member]
Income tax contingency [Abstract]
Unrecognized tax benefits, period increase (decrease)	600,000
Contested Prior Year Deductions In Foreign Jurisdictions [Member]
Income tax contingency [Abstract]
Unrecognized tax benefits, period increase (decrease)	$ (1,400,000)