Commitments and contingencies (Tables)

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Company's Significant Commitments

The following table presents the Company’s significant commitments. Certain of these commitments are not included in the Company’s consolidated balance sheet.

	March 31, 2016		December 31, 2015
	(in thousands)
Commitments to extend credit
Home equity lines of credit	$	5,604,610		5,631,680
Commercial real estate loans to be sold		184,198		57,597
Other commercial real estate		5,727,946		5,949,933
Residential real estate loans to be sold		520,694		488,621
Other residential real estate		281,735		212,619
Commercial and other		12,077,612		11,802,850
Standby letters of credit		3,330,241		3,330,013
Commercial letters of credit		45,798		55,559
Financial guarantees and indemnification contracts		2,773,590		2,794,322
Commitments to sell real estate loans		958,337		782,885