Disposal - Assets Held-for-Sale Income Statement Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment loss on SVBIF Sale Transaction	$ 0	$ 13,934	$ 0
Disposal Group, Held-for-sale, Not Discontinued Operations | SVB India Finance Private Limited, (SVBIF)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Losses primarily attributable to cumulative foreign currency translation adjustment		12,934
Transaction-related expenses		1,000
Impairment loss on SVBIF Sale Transaction	$ 1,300	13,934
Tax impact of undistributed earnings of SVBIF		2,900
Tax impact from net losses on SVBIF Sale Transaction		(5,398)
Net tax impact included in income tax expense		(2,498)
Net Loss on SVBIF Sale Transaction		$ 11,436