Shareholders’ Equity (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period	$ (55,252)	$ (47,695)
Unrealized gains (losses), net of tax effects of $0, $0, and $(54)	(955)	(4,145)	$ (20,288)
Net current period other comprehensive income	(4,228)	(7,557)	(21,155)
Accumulated other comprehensive loss balance, end of period	(59,480)	(55,252)	(47,695)
Investments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period	2,252	6,397	26,685
Unrealized gains (losses), net of tax effects of $0, $0, and $(54)	(562)	(1,774)	2,121
Reclassification adjustments for losses (gains) included in other income (expense)	(393)	(2,371)	(22,409)
Net current period other comprehensive income	(955)	(4,145)	(20,288)
Accumulated other comprehensive loss balance, end of period	1,297	2,252	6,397
Accumulated Other Comprehensive Income (Loss), Tax [Abstract]
Unrealized gains (losses), tax effects	0	0	(54)
Reclassification adjustments for losses (gains) included in other income (expense), tax effects	0	4	(800)
Foreign currency translation
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period	(57,504)	(54,092)	(53,225)
Translation adjustments	(3,009)	(3,364)	(296)
Reclassification adjustments for losses (gains) included in other income (expense)	(264)	(48)	(571)
Net current period other comprehensive income	(3,273)	(3,412)	(867)
Accumulated other comprehensive loss balance, end of period	$ (60,777)	$ (57,504)	$ (54,092)