Annual report pursuant to Section 13 and 15(d)

Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details)

v3.6.0.2
Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
Balance at beginning of period $ 11,187 $ 6,630 $ 14,639
Increases related to prior year tax positions 2,514 365 821
Decreases related to prior year tax positions (5,119) (2,019) (7,623)
Increases related to current year tax positions 1,599 6,564 2,473
Settlements 0 0 (3,121)
Expiration of statute of limitations (183) (353) (559)
Balance at end of period $ 9,998 $ 11,187 $ 6,630