public static function get_customer_details() {
		check_ajax_referer( 'get-customer-details', 'security' );

		if ( ! current_user_can( 'edit_shop_orders' ) || ! isset( $_POST['user_id'] ) ) {
			wp_die( -1 );
		}

		$user_id  = absint( $_POST['user_id'] );
		$customer = new WC_Customer( $user_id );

		if ( has_filter( 'woocommerce_found_customer_details' ) ) {
			wc_deprecated_function( 'The woocommerce_found_customer_details filter', '3.0', 'woocommerce_ajax_get_customer_details' );
		}

		$data                  = $customer->get_data();
		$data['date_created']  = $data['date_created'] ? $data['date_created']->getTimestamp() : null;
		$data['date_modified'] = $data['date_modified'] ? $data['date_modified']->getTimestamp() : null;

		$customer_data = apply_filters( 'woocommerce_ajax_get_customer_details', $data, $customer, $user_id );
		wp_send_json( $customer_data );
	}