CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income	[1]	$ 384,677	$ 345,878	$ 293,324
Other comprehensive (loss) income, net of tax:
Net change in unrealized (losses) gains on available-for-sale investment securities		(10,381)	34,696	(35,128)
Foreign currency translation adjustments		(8,797)	0	0
Other comprehensive (loss) income		(19,178)	34,696	(35,128)
COMPREHENSIVE INCOME	[1]	$ 365,499	$ 380,574	$ 258,196

[1] Prior period was restated to reflect the retrospective application of adopting the new accounting guidance related to the Company’s investments in qualified affordable housing projects Accounting Standards Update (“ASU”) 2014-01. Please see Note 9 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net to the Consolidated Financial Statements for additional information.