Shareholders’ Equity (Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period			$ (47,695)
Unrealized gains (losses), net of tax effects of $0, $587, $0 and $(129)	(323)	(1,043)	(3,936)	(28)
Net current period other comprehensive income	(2,661)	192	(6,083)	(419)
Accumulated other comprehensive income (loss) balance, end of period	(53,778)	(26,959)	(53,778)	(26,959)
Accumulated Other Comprehensive Income (Loss), Tax [Abstract]
Unrealized gains (losses), tax effects	0	587	0	(129)
Reclassification adjustments for losses (gains) included in other income (expense), tax effects	0	0	(4)	0
Investments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period	2,784	27,700	6,397	26,685
Unrealized gains (losses), net of tax effects of $0, $587, $0 and $(129)	(323)	(1,043)	(1,565)	(28)
Reclassification adjustments for losses (gains) included in other income (expense)	0	0	(2,371)	0
Net current period other comprehensive income	(323)	(1,043)	(3,936)	(28)
Accumulated other comprehensive income (loss) balance, end of period	2,461	26,657	2,461	26,657
Foreign currency translation
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period	(53,901)	(54,851)	(54,092)	(53,225)
Translation adjustments	(2,338)	1,235	(2,099)	(356)
Reclassification adjustments for losses (gains) included in other income (expense)	0	0	(48)	(35)
Net current period other comprehensive income	(2,338)	1,235	(2,147)	(391)
Accumulated other comprehensive income (loss) balance, end of period	$ (56,239)	$ (53,616)	$ (56,239)	$ (53,616)