Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 16,291	$ 26,224
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	4,266	(9,186)
Available for sale securities	1,955	(15,968)
Total other comprehensive income (loss), net of tax	6,221	(25,154)
Comprehensive income	22,512	1,070
Less: Comprehensive income attributable to noncontrolling interest in subsidiaries, net of tax	2,870	9,171
Comprehensive income (loss) attributable to common stockholders	$ 19,642	$ (8,101)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=51831270

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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