Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2016

Significant Accounting Policies [Abstract]

Schedule of graduation fund liability

The table below presents activity in the Graduation Fund for the six months ended June 30, 2015 and 2016 (in thousands):

	June 30,		June 30,
	2015		2016
Balance at beginning of period	$	9,706	$	20,937
Revenue deferred		7,753		12,063
Benefit redeemed		(1,845)		(7,741)
Balance at end of period	$	15,614	$	25,259

Schedule of tuition receivable and allowance for doubtful accounts

	December 31, 2015		June 30, 2016
Tuition receivable	$	28,543	$	29,034
Allowance for doubtful accounts		(10,024)		(9,981)
Tuition receivable, net	$	18,519	$	19,053

Schedule of allowance for doubtful accounts

	For the three months ended				For the six months ended
	June 30,				June 30,
	2015		2016		2015		2016
Allowance for doubtful accounts, beginning of period	$	8,688	$	10,226	$	8,835	$	10,024
Additions charged to expense		3,553		4,136		7,022		7,204
Write-offs, net of recoveries		(3,508)		(4,381)		(7,124)		(7,247)
Allowance for doubtful accounts, end of period	$	8,733	$	9,981	$	8,733	$	9,981

Schedule of reconciliation of shares used to calculate basic and diluted earnings per share

	For the three months ended		For the six months ended
	June 30,		June 30,
	2015	2016	2015	2016
Weighted average shares outstanding used to compute basic earnings per share	10,587	10,610	10,583	10,603
Incremental shares issuable upon the assumed exercise of stock options	—	—	—	—
Unvested restricted stock	118	189	138	187
Shares used to compute diluted earnings per share	10,705	10,799	10,721	10,790