Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Dec. 27, 2014	Dec. 28, 2013	Dec. 27, 2014	Dec. 28, 2013
Earnings Per Share
Net income attributed to Boot Barn Holdings, Inc.	$ 8,763us-gaap_NetIncomeLoss	$ 6,339us-gaap_NetIncomeLoss	$ 11,116us-gaap_NetIncomeLoss	$ 3,579us-gaap_NetIncomeLoss
Less: Cash payment to holders of vested options			(1,443)
Net income available for common stockholders	$ 8,763	$ 6,339	$ 9,673	$ 3,579
Weighted average basic shares outstanding	23,704,000	18,929,000	20,928,000	18,929,000
Dilutive effect of stock options	852,000	503,000	671,000	344,000
Weighted average diluted shares outstanding	24,556,000	19,432,000	21,599,000	19,273,000
Basic earnings (loss) per share	$ 0.37us-gaap_EarningsPerShareBasic	$ 0.33us-gaap_EarningsPerShareBasic	$ 0.46us-gaap_EarningsPerShareBasic	$ 0.19us-gaap_EarningsPerShareBasic
Diluted earnings (loss) per share	$ 0.36us-gaap_EarningsPerShareDiluted	$ 0.33us-gaap_EarningsPerShareDiluted	$ 0.45us-gaap_EarningsPerShareDiluted	$ 0.19us-gaap_EarningsPerShareDiluted
Shares that were not included in the computation of weighted average diluted common shares amounts	237,150	611,440	478,692	1,249,380

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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