Revolving Credit Facilities and Mortgage Payable	3 Months Ended
Jun. 30, 2017
Debt Disclosure [Abstract]
Revolving Credit Facilities and Mortgage Payable	Revolving Credit Facilities and Mortgage Payable Domestic Credit Facility In November 2014, the Company amended its revolving credit facility agreement with JPMorgan Chase Bank, National Association as the administrative agent, Comerica and HSBC as co-syndication agents, and the lenders party thereto, in its entirety (as amended, the Second Amended and Restated Credit Agreement) (Domestic Credit Facility). In August 2015, the Company entered into an additional amendment to the Second Amended and Restated Credit Agreement to add certain foreign subsidiaries as borrowers, and in October 2016, further amended the Second Amended and Restated Credit Agreement to allow increased borrowing under its China Credit Facility (as defined below). The Domestic Credit Facility is a five-year, $400,000 secured revolving credit facility which matures on November 13, 2019. At the Company's election, interest under the Domestic Credit Facility is tied to the adjusted London Interbank Offered Rate (LIBOR) or the Alternative Base Rate (ABR), and is variable based on the Company's total adjusted leverage ratio each quarter. As of June 30, 2017, the adjusted LIBOR and ABR rates were 2.72% and 4.75%, respectively, however, as there were no borrowings during three months ended June 30, 2017, neither interest rate applied. During the three months ended June 30, 2017, the Company made no borrowings or repayments under the Domestic Credit Facility. As of June 30, 2017, the Company had no outstanding balance under the Domestic Credit Facility and had outstanding letters of credit of approximately $549. As a result, the available borrowings under the Domestic Credit Facility were $399,451 at June 30, 2017. Subsequent to June 30, 2017, the Company borrowed approximately $70,000 and made repayments of approximately $12,000, resulting in an outstanding balance of approximately $58,000 and available borrowings of approximately $341,451 under the Domestic Credit Facility at August 9, 2017. China Credit Facility In August 2013, Deckers (Beijing) Trading Co., LTD (DBTC), a wholly-owned subsidiary of the Company, entered into a revolving credit facility agreement in China (as amended, China Credit Facility) that provided for an uncommitted revolving line of credit. In October 2016, the China Credit Facility was amended to include an increase in the uncommitted revolving line of credit of up to CNY 300,000, or approximately $44,000, and to remove the sublimit of CNY 50,000, or approximately $7,000, for the Company's wholly-owned subsidiary, Deckers Footwear (Shanghai) Co., LTD (DFSC). In March 2017, the China Credit Facility was amended to remove DFSC, leaving DBTC as the only remaining borrower, and to add an overdraft facility sublimit of CNY 100,000, or approximately $15,000. The China Credit Facility is payable on demand and subject to annual review and renewal. The obligations under the China Credit Facility are guaranteed by the Company for 108.5% of the facility amount in US dollars. Interest is based on the People’s Bank of China market rate which was 4.35% at June 30, 2017. During the three months ended June 30, 2017, the Company made no borrowings or repayments under the China Credit Facility. As of June 30, 2017, the Company had no outstanding balance under the China Credit Facility and had available borrowings of approximately $44,000. Subsequent to June 30, 2017, the Company began utilizing the overdraft facility sublimit and had an outstanding balance of approximately $1,000 and available borrowings of approximately $43,000 under the China Credit Facility at August 9, 2017. Japan Credit Facility In March 2016, Deckers Japan, G.K., a wholly-owned subsidiary of the Company, entered into a revolving credit facility agreement in Japan (Japan Credit Facility) that provides for an uncommitted revolving line of credit of up to JPY 5,500,000, or approximately $49,000, 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 under the terms of the original agreement. Interest is based on the Tokyo Interbank Offered Rate (TIBOR) for three months plus 0.40%. As of June 30, 2017, TIBOR for three months was 0.06% and the total effective interest rate was 0.46%. During the three months ended June 30, 2017, the Company made no borrowings or repayments under the Japan Credit Facility. As of June 30, 2017, the Company had no outstanding balance under the Japan Credit Facility and had available borrowings of approximately $49,000. Subsequent to June 30, 2017, the Company borrowed approximately $5,000 and made no repayments, resulting in an outstanding balance of approximately $5,000 and available borrowings of approximately $44,000 under the Japan Credit Facility at August 9, 2017. Mortgage In July 2014, the Company obtained a mortgage secured by its corporate headquarters property for approximately $33,900. As of June 30, 2017, the outstanding principal balance under the mortgage was approximately $32,500, which includes approximately $557 in short-term borrowings and approximately $31,943 in mortgage payable in the condensed consolidated balance sheets. As of June 30, 2017, the Company was in compliance with all debt covenants under its borrowing arrangements and remains in compliance at August 9, 2017.

Revolving Credit Facilities and Mortgage Payable

Domestic Credit Facility

In November 2014, the Company amended its revolving credit facility agreement with JPMorgan Chase Bank, National Association as the administrative agent, Comerica and HSBC as co-syndication agents, and the lenders party thereto, in its entirety (as amended, the Second Amended and Restated Credit Agreement) (Domestic Credit Facility). In August 2015, the Company entered into an additional amendment to the Second Amended and Restated Credit Agreement to add certain foreign subsidiaries as borrowers, and in October 2016, further amended the Second Amended and Restated Credit Agreement to allow increased borrowing under its China Credit Facility (as defined below). The Domestic Credit Facility is a five-year, $400,000 secured revolving credit facility which matures on November 13, 2019.

At the Company's election, interest under the Domestic Credit Facility is tied to the adjusted London Interbank Offered Rate (LIBOR) or the Alternative Base Rate (ABR), and is variable based on the Company's total adjusted leverage ratio each quarter. As of June 30, 2017, the adjusted LIBOR and ABR rates were 2.72% and 4.75%, respectively, however, as there were no borrowings during three months ended June 30, 2017, neither interest rate applied.

During the three months ended June 30, 2017, the Company made no borrowings or repayments under the Domestic Credit Facility. As of June 30, 2017, the Company had no outstanding balance under the Domestic Credit Facility and had outstanding letters of credit of approximately $549. As a result, the available borrowings under the Domestic Credit Facility were $399,451 at June 30, 2017.

Subsequent to June 30, 2017, the Company borrowed approximately $70,000 and made repayments of approximately $12,000, resulting in an outstanding balance of approximately $58,000 and available borrowings of approximately $341,451 under the Domestic Credit Facility at August 9, 2017.

China Credit Facility

In August 2013, Deckers (Beijing) Trading Co., LTD (DBTC), a wholly-owned subsidiary of the Company, entered into a revolving credit facility agreement in China (as amended, China Credit Facility) that provided for an uncommitted revolving line of credit. In October 2016, the China Credit Facility was amended to include an increase in the uncommitted revolving line of credit of up to CNY 300,000, or approximately $44,000, and to remove the sublimit of CNY 50,000, or approximately $7,000, for the Company's wholly-owned subsidiary, Deckers Footwear (Shanghai) Co., LTD (DFSC). In March 2017, the China Credit Facility was amended to remove DFSC, leaving DBTC as the only remaining borrower, and to add an overdraft facility sublimit of CNY 100,000, or approximately $15,000.

The China Credit Facility is payable on demand and subject to annual review and renewal. The obligations under the China Credit Facility are guaranteed by the Company for 108.5% of the facility amount in US dollars. Interest is based on the People’s Bank of China market rate which was 4.35% at June 30, 2017.

During the three months ended June 30, 2017, the Company made no borrowings or repayments under the China Credit Facility. As of June 30, 2017, the Company had no outstanding balance under the China Credit Facility and had available borrowings of approximately $44,000.

Subsequent to June 30, 2017, the Company began utilizing the overdraft facility sublimit and had an outstanding balance of approximately $1,000 and available borrowings of approximately $43,000 under the China Credit Facility at August 9, 2017.

Japan Credit Facility

In March 2016, Deckers Japan, G.K., a wholly-owned subsidiary of the Company, entered into a revolving credit facility agreement in Japan (Japan Credit Facility) that provides for an uncommitted revolving line of credit of up to JPY 5,500,000, or approximately $49,000, 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 under the terms of the original agreement. Interest is based on the Tokyo Interbank Offered Rate (TIBOR) for three months plus 0.40%. As of June 30, 2017, TIBOR for three months was 0.06% and the total effective interest rate was 0.46%.

During the three months ended June 30, 2017, the Company made no borrowings or repayments under the Japan Credit Facility. As of June 30, 2017, the Company had no outstanding balance under the Japan Credit Facility and had available borrowings of approximately $49,000.

Subsequent to June 30, 2017, the Company borrowed approximately $5,000 and made no repayments, resulting in an outstanding balance of approximately $5,000 and available borrowings of approximately $44,000 under the Japan Credit Facility at August 9, 2017.

Mortgage

In July 2014, the Company obtained a mortgage secured by its corporate headquarters property for approximately $33,900. As of June 30, 2017, the outstanding principal balance under the mortgage was approximately $32,500, which includes approximately $557 in short-term borrowings and approximately $31,943 in mortgage payable in the condensed consolidated balance sheets.

As of June 30, 2017, the Company was in compliance with all debt covenants under its borrowing arrangements and remains in compliance at August 9, 2017.