Parent Company Information (Tables)

12 Months Ended

Dec. 31, 2016

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Schedule of Parent Company Information Balance Sheet

Condensed Balance Sheets
	December 31,
(In thousands)	2016		2015
Assets:
Cash and due from banks	$	152,947	$	279,644
Securities available for sale, at fair value	—		2,578
Intercompany debt securities	150,000		—
Investment in subsidiaries	2,425,398		2,345,457
Alternative investments	4,275		6,795
Other assets	24,659		15,263
Total assets	$	2,757,279	$	2,649,737
Liabilities and shareholders’ equity:
Senior notes	$	148,194	$	147,940
Junior subordinated debt	77,320		77,320
Accrued interest payable	2,589		2,591
Due to subsidiaries	365		48
Other liabilities	1,799		7,878
Total liabilities	230,267		235,777
Shareholders’ equity	2,527,012		2,413,960
Total liabilities and shareholders’ equity	$	2,757,279	$	2,649,737

Schedule of Parent Company Information Income Statement

Condensed Statements of Income
	Years ended December 31,
(In thousands)	2016			2015		2014
Operating Income:
Dividend income from bank subsidiary	$	145,000		$	110,000	$	100,000
Interest on securities and deposits	1,911			546		613
(Loss) gain on sale of investment securities, net	(2,410		)	—		1,185
Alternative investments income	176			2,274		804
Other non-interest income	7,485			152		151
Total operating income	152,162			112,972		102,753
Operating Expense:
Interest expense on borrowings	9,981			9,665		10,041
Compensation and benefits	11,461			10,965		10,290
Other non-interest expense	6,278			6,005		4,562
Total operating expense	27,720			26,635		24,893
Income before income tax benefit and equity in undistributed earnings of subsidiaries and associated companies	124,442			86,337		77,860
Income tax benefit	3,086			2,929		8,798
Equity in undistributed earnings of subsidiaries and associated companies	79,599			115,463		113,068
Net income	$	207,127		$	204,729	$	199,726

Schedule of Parent Company Information Comprehensive Income Statement

Condensed Statements of Comprehensive Income
	Years ended December 31,
(In thousands)	2016			2015			2014
Net income	$	207,127		$	204,729		$	199,726
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on available for sale securities	584			(2,109		)	725
Net unrealized gains (losses) on derivative instruments	1,223			1,223			(2,932		)
Other comprehensive loss of subsidiaries and associated companies	(694		)	(20,959		)	(5,505		)
Other comprehensive income (loss), net of tax	1,113			(21,845		)	(7,712		)
Comprehensive income	$	208,240		$	182,884		$	192,014

Schedule of Parent Company Information Cash Flow Statement

Condensed Statements of Cash Flows
	Years ended December 31,
(In thousands)	2016			2015			2014
Operating activities:
Net income	$	207,127		$	204,729		$	199,726
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed earnings of subsidiaries and associated companies	(79,599		)	(115,463		)	(113,068		)
Stock-based compensation	11,438			10,935			10,223
Gain on redemption of other assets	(7,331		)	—			—
Other, net	(3,736		)	9,066			(10,721		)
Net cash provided by operating activities	127,899			109,267			86,160
Investing activities:
Purchases of available for sale securities	—			—			(3,500		)
Proceeds from sale of available for sale securities	1,089			—			3,499
Purchases of intercompany debt securities	(150,000		)	—			—
Net cash used for investing activities	(148,911		)	—			(1		)
Financing activities:
Issuance of long-term debt	—			—			150,000
Repayment of long-term debt	—			—			(150,000		)
Cash dividends paid to common shareholders	(89,522		)	(80,964		)	(67,431		)
Cash dividends paid to preferred shareholders	(8,096		)	(8,711		)	(10,556		)
Exercise of stock options	11,762			3,060			2,221
Excess tax benefits from stock-based compensation	3,204			2,338			1,161
Common stock issued	—			—			435
Common stock repurchased/shares acquired related to employee share-based plans	(22,870		)	(17,815		)	(13,067		)
Common stock warrants repurchased	(163		)	(23		)	(3		)
Net cash used for financing activities	(105,685		)	(102,115		)	(87,240		)
(Decrease) increase in cash and due from banks	(126,697		)	7,152			(1,081		)
Cash and due from banks at beginning of year	279,644			272,492			273,573
Cash and due from banks at end of year	$	152,947		$	279,644		$	272,492