Employee Pension Benefits (Tables)

9 Months Ended

Sep. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Pension Benefit of Pension Plan and Excess Pension Plan

The following table sets forth the components of net periodic pension benefit of the ESI Pension Plan and ESI Excess Pension Plan in the periods indicated:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Interest cost	$	360		$	506		$	1,178		$	1,518
Expected return on assets		(1,316	)		(1,311	)		(4,083	)		(3,935	)
Recognized net actuarial loss		0			0			1			0
Amortization of prior service (credit)		(388	)		(389	)		(1,166	)		(1,166	)
Net periodic pension (benefit)	$	(1,344	)	$	(1,194	)	$	(4,070	)	$	(3,583	)

Schedule of Changes in Components of Accumulated Other Comprehensive Income

The following table sets forth the changes in the components of Accumulated other comprehensive income on our Condensed Consolidated Balance Sheet in the nine months ended September 30, 2015:

	Defined Benefit Pension Items
	Accumulated Other Comprehensive Income			Income Tax Benefit (Expense)			Accumulated Other Comprehensive Income Net of Income Tax
Balance at December 31, 2014	$	1,854		$	(653	)	$	1,201
Amortization of:
Net actuarial loss		1			0			1
Prior service costs (credits)		(1,166	)		451			(715	)
Balance at September 30, 2015	$	689		$	(202	)	$	487

Schedule of Net Periodic Pension Benefit and Related Income Statement Line Item

The following table sets forth the approximate amounts of net periodic pension benefit and the line items in which those amounts were included in our Condensed Consolidated Statements of Income in the periods indicated:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Cost of educational services	$	841	$	787	$	2,603	$	2,349
Student services and administrative expenses		503		407		1,467		1,234
Net periodic pension benefit	$	1,344	$	1,194	$	4,070	$	3,583