Cash, Cash Equivalents and Investments (Tables)

3 Months Ended

Mar. 31, 2017

Cash and Cash Equivalents [Abstract]

Cash, Cash Equivalents and Investments

Our total corporate and WSE related cash, cash equivalents and investments are summarized below:

	March 31, 2017								December 31, 2016
(in thousands)	Cash and cash equivalents		Available for sale marketable securities		Certificate of deposits		Total		Cash and cash equivalents		Available for sale marketable securities		Certificate of deposits		Total
Cash and cash equivalents	$	216,054	$	—	$	—	$	216,054	$	184,004	$	—	$	—	$	184,004
Restricted cash and cash equivalents	14,578		—		—		14,578		14,569		—		—		14,569
Restricted cash, cash equivalents and investments, noncurrent
Collateral for workers' compensation claims	79,540		48,175		—		127,715		78,672		51,829		—		130,501
Worksite employee related assets
Restricted cash, cash equivalents and investments, current
Collateral for health benefits claims	68,906		—		—		68,906		65,022		—		—		65,022
Collateral for workers' compensation claims	67,949		—		—		67,949		64,773		—		—		64,773
Investments	—		—		2,320		2,320		—		—		2,320		2,320
Total WSE related restricted cash, cash equivalents and investments, current	136,855		—		2,320		139,175		129,795		—		2,320		132,115
Payroll funds collected	580,515		—		—		580,515		825,958		—		—		825,958
Total	$	1,027,542	$	48,175	$	2,320	$	1,078,037	$	1,232,998	$	51,829	$	2,320	$	1,287,147