Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 36,492,000	$ 59,736,000
Accounts receivable, net	61,818,000us-gaap_AccountsReceivableNetCurrent	59,359,000us-gaap_AccountsReceivableNetCurrent
Accounts receivable - students, net	26,037,000stnr_AccountsReceivableStudentsNet	20,531,000stnr_AccountsReceivableStudentsNet
Inventories	53,513,000us-gaap_InventoryNet	52,102,000us-gaap_InventoryNet
Prepaid expenses and other current assets	20,360,000	18,129,000
Total current assets	198,220,000us-gaap_AssetsCurrent	209,857,000us-gaap_AssetsCurrent
PROPERTY AND EQUIPMENT, net	100,272,000us-gaap_PropertyPlantAndEquipmentNet	96,509,000us-gaap_PropertyPlantAndEquipmentNet
GOODWILL	148,815,000us-gaap_Goodwill	148,815,000us-gaap_Goodwill
OTHER ASSETS:
Intangible assets, net	68,948,000	69,184,000
Deferred financing costs, net	2,287,000	2,481,000
Deferred customer acquisition costs	9,201,000	8,723,000
Other	18,653,000us-gaap_OtherAssetsNoncurrent	17,274,000us-gaap_OtherAssetsNoncurrent
Total other assets	99,089,000us-gaap_AssetsNoncurrent	97,662,000us-gaap_AssetsNoncurrent
Total assets	546,396,000us-gaap_Assets	552,843,000us-gaap_Assets
CURRENT LIABILITIES:
Accounts payable	20,885,000us-gaap_AccountsPayableCurrent	26,162,000us-gaap_AccountsPayableCurrent
Accrued expenses	45,740,000us-gaap_AccruedLiabilitiesCurrent	43,302,000us-gaap_AccruedLiabilitiesCurrent
Current portion of long-term debt	4,462,000us-gaap_LongTermDebtCurrent	1,405,000us-gaap_LongTermDebtCurrent
Current portion of deferred rent	2,392,000us-gaap_DeferredRentCreditCurrent	2,392,000us-gaap_DeferredRentCreditCurrent
Current portion of deferred tuition revenue	27,507,000	22,337,000
Current portion of deferred revenue	95,889,000us-gaap_DeferredRevenueCurrent	88,086,000us-gaap_DeferredRevenueCurrent
Gift certificate liability	15,337,000	16,364,000
Income taxes payable	1,684,000us-gaap_AccruedIncomeTaxesCurrent	1,972,000us-gaap_AccruedIncomeTaxesCurrent
Total current liabilities	213,896,000us-gaap_LiabilitiesCurrent	202,020,000us-gaap_LiabilitiesCurrent
NON-CURRENT LIABILITIES:
Deferred income tax liabilities, net	29,174,000	28,304,000
Long-term debt	108,119,000us-gaap_LongTermDebtNoncurrent	127,177,000us-gaap_LongTermDebtNoncurrent
Long-term deferred rent	14,529,000us-gaap_DeferredRentCreditNoncurrent	14,674,000us-gaap_DeferredRentCreditNoncurrent
Long-term deferred tuition revenue	240,000stnr_LongTermDeferredTuitionrevenue	113,000stnr_LongTermDeferredTuitionrevenue
Long-term deferred revenue	7,775,000us-gaap_DeferredRevenueNoncurrent	7,660,000us-gaap_DeferredRevenueNoncurrent
Total non-current liabilities	159,837,000us-gaap_LiabilitiesNoncurrent	177,928,000us-gaap_LiabilitiesNoncurrent
SHAREHOLDERS' EQUITY:
Preferred shares, $.0l par value; 10,000 shares authorized, none issued and outstanding	0us-gaap_PreferredStockValue	0us-gaap_PreferredStockValue
Common shares, $.0l par value; 100,000 shares authorized, 24,204 shares issued in 2015 and 24,191 shares issued in 2014	242,000us-gaap_CommonStockValue	242,000us-gaap_CommonStockValue
Additional paid-in capital	198,273,000	196,156,000
Accumulated other comprehensive loss	(3,543,000)	(2,571,000)
Retained earnings	382,010,000	373,898,000
Treasury shares, at cost, 11,357 shares in 2015 and 11,153 shares in 2014	(404,319,000)us-gaap_TreasuryStockValue	(394,830,000)us-gaap_TreasuryStockValue
Total shareholders' equity	172,663,000us-gaap_StockholdersEquity	172,895,000us-gaap_StockholdersEquity
Total liabilities and shareholders' equity	$ 546,396,000	$ 552,843,000

Amount due from students, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for tuition, program materials, books and supplies that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

No definition available.