Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000917520 (http://www.sec.gov/CIK)

Debt Disclosure [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Debt Disclosure [Abstract]
Schedule of Maturities of Long-term Debt	Contractual repayments of the term loan are due as follows: Year Ended December 31, Principal Repayment   (In thousands) 2017 $— 2018 25,000 2019 25,000 2020 37,500 2021 412,500
Components of Interest Expense	The interest expense components of the Company’s convertible notes are as follows:     Years Ended December 31,   2016   2015   2014   (In thousands) 2016 Convertible Notes:           Amortization of the discount on the liability component (1) $ 8,073   $ 7,917   $ 7,104 Cash interest related to the contractual interest coupon (2) 3,407   3,430   3,342 Total $ 11,480   $ 11,347   $ 10,446 (1) The amortization of the discount on the liability component of the 2016 Convertible Notes is presented net of capitalized interest of $0.3 million, $0.6 million, and $0.9 million for the years ended December 31, 2016, 2015, and 2014, respectively. (2) The cash interest related to the contractual interest coupon on the 2016 Convertible Notes is presented net of capitalized interest of $0.1 million, $0.3 million, and $0.4 million for the years ended December 31, 2016, 2015, and 2014, respectively.