Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net income	$ 179,549	$ 173,697	$ 151,378
Other comprehensive income, net of taxes:
Total available for sale and transferred securities	(45,358)	26,774	(1,562)
Total derivative instruments	9,696	982	(22,995)
Total defined benefit pension and postretirement benefit plans	19,379	182	(21,938)
Other comprehensive (loss) income	(16,283)	27,938	(46,495)
Comprehensive income	163,266	201,635	104,883
Less: comprehensive loss attributable to non controlling interests	0	0	(1)
Comprehensive income attributable to Webster Financial Corporation	$ 163,266	$ 201,635	$ 104,884