Notes Payable and Long Term Debt	9 Months Ended
Dec. 31, 2016
Debt Disclosure [Abstract]
Notes Payable and Long Term Debt	Notes Payable and Long Term Debt Domestic Line of Credit. In August 2015, the Company entered into an amendment to the Second Amended and Restated Credit Agreement with JPMorgan Chase Bank, National Association (as amended, Second Amended and Restated Credit Agreement, and such credit facility, Domestic Credit Facility) to add certain foreign subsidiaries as borrowers. During the three months ended December 31, 2016, the Company borrowed approximately $50,000 and made repayments of approximately $305,000 under the Domestic Credit Facility. As of December 31, 2016, the Company had no outstanding balance and outstanding letters of credit of approximately $584. The Company had debt capacity of approximately $389,000 out of $400,000 due to limitations on consolidated worldwide borrowings under the terms of the Domestic Credit Facility. Amounts outstanding are included in short-term borrowings in the condensed consolidated balance sheets as of December 31, 2016 and March 31, 2016, respectively. Interest is tied to the prime rate or, at the Company's election, to the adjusted London Interbank Offered Rate (LIBOR). As of December 31, 2016, the effective LIBOR and prime interest rates were 2.52% and 4.50%, respectively. In October 2016, the Company further amended the Second Amended and Restated Credit Agreement to allow increased borrowing under its China Credit Facility (as defined below). At February 9, 2017, the Company had no outstanding balance, and available borrowings of approximately $389,000 under the Domestic Credit Facility. China Line of Credit. In October 2016, the Company entered into a second amendment to its credit facility in China (as amended, China Credit Facility) to provide for an increase in the uncommitted revolving line of credit to an aggregate of CNY 300,000, or approximately $43,000, including a sublimit of CNY 50,000, or approximately $7,000, for the Company's wholly-owned subsidiary, Deckers Footwear (Shanghai) Co., LTD. During the three months ended December 31, 2016, the Company borrowed approximately $21,000 and made repayments of approximately $22,000 under the China Credit Facility. As of December 31, 2016, the Company had a total outstanding balance of approximately $21,000 and available borrowings of approximately $22,000 under the China Credit Facility. Amounts outstanding are included in short-term borrowings in the condensed consolidated balance sheets as of December 31, 2016. Interest is based on the People’s Bank of China rate, which was 4.35% as of December 31, 2016. At February 9, 2017, the Company had a total outstanding balance of approximately $21,000 and available borrowings of approximately $22,000 under the China Credit Facility. Japan Line of Credit. In March 2016, Deckers Japan, G.K., a wholly-owned subsidiary of the Company, entered into a credit facility in Japan (Japan Credit Facility) that provides for an uncommitted revolving line of credit of up to JPY 5,500,000, or approximately $47,000, for a maximum term of six months for each draw on the facility. The Japan Credit Facility renews annually, and is guaranteed by the Company. The Company has renewed the Japan Credit Facility through January 31, 2018. During the three months ended December 31, 2016, the Company borrowed approximately $27,000 and made repayments of approximately $18,000 under the Japan Credit Facility. As of December 31, 2016, the Company had a total outstanding balance of approximately $9,000 and available borrowings of approximately $38,000 under the Japan Credit Facility. Amounts outstanding are included in short-term borrowings in the condensed consolidated balance sheets as of December 31, 2016. Interest is based on the Tokyo Interbank Offered Rate plus 0.40%, and as of December 31, 2016, the effective interest rate was 0.43%. At February 9, 2017, the Company had no outstanding balance and available borrowings of approximately $47,000 under the Japan Credit Facility. As of December 31, 2016, the Company was in compliance with all covenants under its borrowing arrangements and remains in compliance at February 9, 2017. The outstanding balance and available borrowings amounts disclosed above for the China Credit Facility and Japan Credit Facility have been translated into United States dollars using spot rates in effect as of December 31, 2016.

Notes Payable and Long Term Debt

Domestic Line of Credit. In August 2015, the Company entered into an amendment to the Second Amended and Restated Credit Agreement with JPMorgan Chase Bank, National Association (as amended, Second Amended and Restated Credit Agreement, and such credit facility, Domestic Credit Facility) to add certain foreign subsidiaries as borrowers. During the three months ended December 31, 2016, the Company borrowed approximately $50,000 and made repayments of approximately $305,000 under the Domestic Credit Facility. As of December 31, 2016, the Company had no outstanding balance and outstanding letters of credit of approximately $584. The Company had debt capacity of approximately $389,000 out of $400,000 due to limitations on consolidated worldwide borrowings under the terms of the Domestic Credit Facility. Amounts outstanding are included in short-term borrowings in the condensed consolidated balance sheets as of December 31, 2016 and March 31, 2016, respectively. Interest is tied to the prime rate or, at the Company's election, to the adjusted London Interbank Offered Rate (LIBOR). As of December 31, 2016, the effective LIBOR and prime interest rates were 2.52% and 4.50%, respectively. In October 2016, the Company further amended the Second Amended and Restated Credit Agreement to allow increased borrowing under its China Credit Facility (as defined below). At February 9, 2017, the Company had no outstanding balance, and available borrowings of approximately $389,000 under the Domestic Credit Facility.

China Line of Credit. In October 2016, the Company entered into a second amendment to its credit facility in China (as amended, China Credit Facility) to provide for an increase in the uncommitted revolving line of credit to an aggregate of CNY 300,000, or approximately $43,000, including a sublimit of CNY 50,000, or approximately $7,000, for the Company's wholly-owned subsidiary, Deckers Footwear (Shanghai) Co., LTD. During the three months ended December 31, 2016, the Company borrowed approximately $21,000 and made repayments of approximately $22,000 under the China Credit Facility. As of December 31, 2016, the Company had a total outstanding balance of approximately $21,000 and available borrowings of approximately $22,000 under the China Credit Facility. Amounts outstanding are included in short-term borrowings in the condensed consolidated balance sheets as of December 31, 2016. Interest is based on the People’s Bank of China rate, which was 4.35% as of December 31, 2016. At February 9, 2017, the Company had a total outstanding balance of approximately $21,000 and available borrowings of approximately $22,000 under the China Credit Facility.

Japan Line of Credit. In March 2016, Deckers Japan, G.K., a wholly-owned subsidiary of the Company, entered into a credit facility in Japan (Japan Credit Facility) that provides for an uncommitted revolving line of credit of up to JPY 5,500,000, or approximately $47,000, for a maximum term of six months for each draw on the facility. The Japan Credit Facility renews annually, and is guaranteed by the Company. The Company has renewed the Japan Credit Facility through January 31, 2018. During the three months ended December 31, 2016, the Company borrowed approximately $27,000 and made repayments of approximately $18,000 under the Japan Credit Facility. As of December 31, 2016, the Company had a total outstanding balance of approximately $9,000 and available borrowings of approximately $38,000 under the Japan Credit Facility. Amounts outstanding are included in short-term borrowings in the condensed consolidated balance sheets as of December 31, 2016. Interest is based on the Tokyo Interbank Offered Rate plus 0.40%, and as of December 31, 2016, the effective interest rate was 0.43%. At February 9, 2017, the Company had no outstanding balance and available borrowings of approximately $47,000 under the Japan Credit Facility.

As of December 31, 2016, the Company was in compliance with all covenants under its borrowing arrangements and remains in compliance at February 9, 2017.

The outstanding balance and available borrowings amounts disclosed above for the China Credit Facility and Japan Credit Facility have been translated into United States dollars using spot rates in effect as of December 31, 2016.