Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands							3 Months Ended		7 Months Ended	12 Months Ended
	Jan. 21, 2016	Nov. 02, 2015	Oct. 28, 2015	Jun. 10, 2015	Jun. 08, 2015	Mar. 26, 2012	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2015	Aug. 31, 2016	Dec. 17, 2015	Oct. 31, 2014	Feb. 28, 2013
Loss Contingencies [Line Items]
Face amount of surety bonds							$ 22,300
ED Escrowed Funds							79,708		$ 79,708	$ 79,708		$ 79,708
ED Letter of Credit payable													$ 79,708
Amount of unrecognized tax benefits that could be paid in 12 months							4,200
Payments under PEAK Guarantee										30,090
Collateral maintained with bank for education loan							8,630	$ 8,630	8,630	8,630
Deferred payments, gross									6,092
Litigation settlement amount						$ 395
Insurance recoveries							25,000
Litigation Settlement to pay	$ 1,100
Scenario, Forecast [Member]
Loss Contingencies [Line Items]
Additional collateral required to deposit											$ 200
Indiana Securities Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement amount		$ 12,538
Gallien Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement amount			$ 400
Percentage of net settlement amounts paid to settlement class members in the form of individual settlement payments			55.00%
Net settlement amounts paid in individual settlement payments			$ 204
New York Securities Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement amount		$ 16,962
Massachusetts Litigation [Member]
Loss Contingencies [Line Items]
Civil penalties sought value per violation							5
CUSO Program [Member]
Loss Contingencies [Line Items]
Principal amount for private education loans							141,000
CUSO RSA [Member]
Loss Contingencies [Line Items]
Discharge Payments							0	2,709
PEAKS Guarantee [Member]
Loss Contingencies [Line Items]
Future recovery of PEAKS guarantee payments							35,000
PEAKS Senior Debt [Member]
Loss Contingencies [Line Items]
Outstanding balance							50,135	$ 81,273	57,111	$ 57,111				$ 257,533
Letter of Credit Issued to Insurers and Agencies [Member]
Loss Contingencies [Line Items]
Letter of credit payable							106
Revolving Note [Member]
Loss Contingencies [Line Items]
Credit facility outstanding, amount							8,200
CUSO [Member]
Loss Contingencies [Line Items]
Amount of offset to repay							10,417
Recoveries of loans previously from charged-off not received							1,049
Period From April One Two Thousand Sixteen Through December Thirty One Two Thousand Sixteen [Member] | PEAKS Guarantee [Member]
Loss Contingencies [Line Items]
Payments under PEAK Guarantee							6,700
Year 2016 [Member] | PEAKS Senior Debt [Member] | PEAKS Guarantee [Member]
Loss Contingencies [Line Items]
Outstanding balance							36,000
Year 2017 [Member] | PEAKS Guarantee [Member]
Loss Contingencies [Line Items]
Payments under PEAK Guarantee							600
Year 2017 [Member] | PEAKS Senior Debt [Member] | PEAKS Guarantee [Member]
Loss Contingencies [Line Items]
Outstanding balance							28,000
Year 2020 [Member] | PEAKS Guarantee [Member]
Loss Contingencies [Line Items]
Payments under PEAK Guarantee							10,300
Year 2020 [Member] | PEAKS Senior Debt [Member] | PEAKS Guarantee [Member]
Loss Contingencies [Line Items]
Outstanding balance							0
Deferred Payments [Member] | CUSO RSA [Member]
Loss Contingencies [Line Items]
Recoveries of charged off loans received									$ 761
Maximum [Member]
Loss Contingencies [Line Items]
Unrecognized tax benefits that could decrease in the 12 months immediately following the date of this filing							11,100
Minimum [Member]
Loss Contingencies [Line Items]
Unrecognized tax benefits that could decrease in the 12 months immediately following the date of this filing							$ 0
Sixth Amendment [Member] | CUSO RSA [Member]
Loss Contingencies [Line Items]
Discharge Payments				$ 6,544
Accrued interest rate					12.50%
Reduction amount in Regular Payments				$ 2,000