Gladstone Commercial Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail)

Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2011	Dec. 31, 2014
Preferred Stock, Shares Issued, beginning balance	2,150,000us-gaap_PreferredStockSharesIssued
Preferred Stock, Shares Issued, ending balance	2,150,000us-gaap_PreferredStockSharesIssued
Senior Common stock, Shares Issued, beginning balance	809,411good_SeniorCommonStockSharesIssued
Senior Common stock, Shares Issued, ending balance	1,001,957good_SeniorCommonStockSharesIssued
Common Stock, Shares Issued, beginning balance	19,589,606us-gaap_CommonStockSharesIssued
Common Stock, Shares Issued, ending balance	20,459,687us-gaap_CommonStockSharesIssued
Total Stockholders' Equity, beginning balance	$ 217,672us-gaap_StockholdersEquity
Issuance of senior common stock and common stock, net	17,644
Distributions declared to common, senior common and preferred stockholders	(8,853)us-gaap_Dividends
Net income	694us-gaap_NetIncomeLoss	(13,514)us-gaap_NetIncomeLoss
Total Stockholders' Equity, ending balance	227,157us-gaap_StockholdersEquity
Senior Common Stock [Member]
Issuance of common stock, net, Shares	192,546
Common Stock, Shares Issued, beginning balance			3,500,000
Common Stock, Shares Issued, ending balance			3,500,000
Total Stockholders' Equity, beginning balance	1
Total Stockholders' Equity, ending balance	1
Preferred Stock [Member]
Total Stockholders' Equity, beginning balance				2
Total Stockholders' Equity, ending balance	2			2
Common Stock [Member]
Issuance of common stock, net, Shares	870,081
Total Stockholders' Equity, beginning balance	20
Total Stockholders' Equity, ending balance	20
Additional Paid in Capital [Member]
Total Stockholders' Equity, beginning balance	369,748
Issuance of senior common stock and common stock, net	17,644
Total Stockholders' Equity, ending balance	387,392
Notes Receivable from Employees [Member]
Total Stockholders' Equity, beginning balance				(375)
Total Stockholders' Equity, ending balance	(375)			(375)
Distributions in Excess of Accumulated Earnings [Member]
Total Stockholders' Equity, beginning balance	(151,724)
Distributions declared to common, senior common and preferred stockholders	(8,853)
Net income	694
Total Stockholders' Equity, ending balance	$ (159,883)