Guarantees (Tables)

12 Months Ended

Dec. 31, 2016

Guarantees [Abstract]

Letters of credit and surety bonds outstanding

At December 31, 2016 and 2015, we had letters of credit and surety bonds outstanding, which primarily guarantee various insurance activities as noted in the following table:

	December 31,
	2016		2015
	(In thousands)
Letters of credit	$	240,420	241,022
Surety bonds	113,696		104,632