Recent Accounting Standards	6 Months Ended
Jun. 30, 2018
Recent Accounting Standards [Abstract]
Recent Accounting Standards	2. Recent Accounting Standards Recently Issued Accounting Standards In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, “Leases (Topic 842).” The pronouncement requires lessees to recognize a liability for lease obligations, which represent the discounted obligation to make future minimum lease payments, and a corresponding right-of-use asset on the balance sheet. The guidance requires disclosures of key information about leasing arrangements that is intended to give financial statement users the ability to assess the amount, timing, and potential uncertainty of cash flows related to leases. We will adopt the requirements of the new lease standard effective January 1, 2019, and the pronouncement requires a modified retrospective adoption method. We plan to elect the transition package of three practical expedients permitted within the standard, which among other things, allows the carryforward of historical lease classifications, and we are further evaluating other optional practical expedients and policy elections. We are assessing the impact of the standard to our accounting policies, processes, disclosures, and internal control over financial reporting and we are implementing necessary upgrades to our existing lease system. The adoption of ASU 2016-02 will have a significant impact on our consolidated balance sheet because we will record material assets and obligations for current operating leases. We are still assessing the expected impact on our consolidated statements of income and cash flows. We reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact on the consolidated financial statements. Recently Adopted Accounting Standards During the first quarter of 2018, we retrospectively adopted ASU 2014-09 “Revenue from Contracts with Customers (Topic 606),” which requires an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The adoption did not have an impact on the condensed consolidated balance sheet, statements of income, or cash flows. The primary impact of adoption was the enhancement of our disclosures related to gift cards and certain promotional activity included in Note 4. “Revenue Recognition.” During the first quarter of 2018, we retrospectively adopted ASU 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash,” which requires restricted cash to be classified with cash and cash equivalents when reconciling the beginning of period and end of period total amounts on the statement of cash flows. Accordingly, we reclassified $28,536 of restricted cash into cash, cash equivalents, and restricted cash as of June 30, 2017, for a total balance of $203,673, which resulted in a $46 increase in net cash provided by operating activities in the condensed consolidated statement of cash flows for the six months ended June 30, 2017. The adoption of the guidance also requires us to reconcile the cash balance presented on the condensed consolidated statement of cash flows to the cash balance presented on the condensed consolidated balance sheet, as well as make disclosures about the nature of restricted cash balances. See Note 3. “Restricted Cash” for these disclosures.

2. Recent Accounting Standards

Recently Issued Accounting Standards

In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, “Leases (Topic 842).” The pronouncement requires lessees to recognize a liability for lease obligations, which represent the discounted obligation to make future minimum lease payments, and a corresponding right-of-use asset on the balance sheet. The guidance requires disclosures of key information about leasing arrangements that is intended to give financial statement users the ability to assess the amount, timing, and potential uncertainty of cash flows related to leases. We will adopt the requirements of the new lease standard effective January 1, 2019, and the pronouncement requires a modified retrospective adoption method. We plan to elect the transition package of three practical expedients permitted within the standard, which among other things, allows the carryforward of historical lease classifications, and we are further evaluating other optional practical expedients and policy elections. We are assessing the impact of the standard to our accounting policies, processes, disclosures, and internal control over financial reporting and we are implementing necessary upgrades to our existing lease system. The adoption of ASU 2016-02 will have a significant impact on our consolidated balance sheet because we will record material assets and obligations for current operating leases. We are still assessing the expected impact on our consolidated statements of income and cash flows.

We reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact on the consolidated financial statements.

Recently Adopted Accounting Standards

During the first quarter of 2018, we retrospectively adopted ASU 2014-09 “Revenue from Contracts with Customers (Topic 606),” which requires an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The adoption did not have an impact on the condensed consolidated balance sheet, statements of income, or cash flows. The primary impact of adoption was the enhancement of our disclosures related to gift cards and certain promotional activity included in Note 4. “Revenue Recognition.”

During the first quarter of 2018, we retrospectively adopted ASU 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash,” which requires restricted cash to be classified with cash and cash equivalents when reconciling the beginning of period and end of period total amounts on the statement of cash flows. Accordingly, we reclassified $28,536 of restricted cash into cash, cash equivalents, and restricted cash as of June 30, 2017, for a total balance of $203,673, which resulted in a $46 increase in net cash provided by operating activities in the condensed consolidated statement of cash flows for the six months ended June 30, 2017. The adoption of the guidance also requires us to reconcile the cash balance presented on the condensed consolidated statement of cash flows to the cash balance presented on the condensed consolidated balance sheet, as well as make disclosures about the nature of restricted cash balances. See Note 3. “Restricted Cash” for these disclosures.