Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net earnings	$ 23,246	$ 13,790	$ 42,987	$ 32,001
Unrealized gains (losses) on securities:
Net unrealized holding gains arising during period	5,624	5,769	13,376	5,775
Net unrealized liquidity gains (losses)	161	149	137	350
Reclassification adjustment for net amounts included in net earnings	(1,658)	(194)	(2,698)	(2,079)
Amortization of net unrealized (gains) losses related to transferred securities	0	14	1	7
Net unrealized gains (losses) on securities	4,127	5,738	10,816	4,053
Foreign currency translation adjustments	(101)	(59)	285	(134)
Benefit plans:
Amortization of net prior service cost and net gain, net of tax	225	292	448	582
Other comprehensive income	4,251	5,971	11,549	4,501
Comprehensive income	$ 27,497	$ 19,761	$ 54,536	$ 36,502

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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